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 Page 1


 GrADe 6: MATheMATiCS [TerM 2] 125
Unit Whole n Umbers :
2
m Ulti Plic Ation 2.1 Extending multiplication facts
To do calculations such as 56 × 73 and 254 × 78, and to do  
multiplication with bigger numbers such as 357 × 472 and 7 358 × 573,  
you need to know basic multiplication facts such as 50 × 70 = 3 500  
very well. 
In this section, you will refresh your memory of multiplication facts.
1. For which of the following can you give the answers straight away? 
Write down only those answers that you know immediately. You 
can answer the others later. 
(a) 2 × 7 (b) 3 × 5 (c) 6 × 7 (d) 70 × 10
(e) 8 × 90 (f) 6 × 4 (g) 6 × 8 (h) 6 × 9
A multiplication fact that you know can often help you to build 
knowledge of another multiplication fact. Here are some examples:
If you know that 2 × 7 = 14, you also know that 7 × 2 = 14. 
You can easily see that
  2 × 70   = 140  and  70 × 2 = 140
  2 × 700  = 1 400  and 700 × 2 = 1 400
  2 × 7 000  = 14 000  and  7 000 × 2 = 14 000.
If you know that 2 × 70 = 140 and 70 × 2 = 140,  
you can also easily see that
  20 × 70  = 1 400  and  70 × 20 = 1 400
  200 × 70  = 14 000  and  70 × 200 = 14 000
  20 × 700  = 14 000  and  700 × 20 = 14 000
  200 × 700  = 140 000  and 700 × 200 = 140 000, and so on.
You can double the answer of 2 × 7 = 14 to get 4 × 7 = 28 and then you 
also know that 7 × 4 = 28. 
Maths_English_LB_Grade6_Book.indb   125 2016/12/15   4:21:21 PM
Page 2


 GrADe 6: MATheMATiCS [TerM 2] 125
Unit Whole n Umbers :
2
m Ulti Plic Ation 2.1 Extending multiplication facts
To do calculations such as 56 × 73 and 254 × 78, and to do  
multiplication with bigger numbers such as 357 × 472 and 7 358 × 573,  
you need to know basic multiplication facts such as 50 × 70 = 3 500  
very well. 
In this section, you will refresh your memory of multiplication facts.
1. For which of the following can you give the answers straight away? 
Write down only those answers that you know immediately. You 
can answer the others later. 
(a) 2 × 7 (b) 3 × 5 (c) 6 × 7 (d) 70 × 10
(e) 8 × 90 (f) 6 × 4 (g) 6 × 8 (h) 6 × 9
A multiplication fact that you know can often help you to build 
knowledge of another multiplication fact. Here are some examples:
If you know that 2 × 7 = 14, you also know that 7 × 2 = 14. 
You can easily see that
  2 × 70   = 140  and  70 × 2 = 140
  2 × 700  = 1 400  and 700 × 2 = 1 400
  2 × 7 000  = 14 000  and  7 000 × 2 = 14 000.
If you know that 2 × 70 = 140 and 70 × 2 = 140,  
you can also easily see that
  20 × 70  = 1 400  and  70 × 20 = 1 400
  200 × 70  = 14 000  and  70 × 200 = 14 000
  20 × 700  = 14 000  and  700 × 20 = 14 000
  200 × 700  = 140 000  and 700 × 200 = 140 000, and so on.
You can double the answer of 2 × 7 = 14 to get 4 × 7 = 28 and then you 
also know that 7 × 4 = 28. 
Maths_English_LB_Grade6_Book.indb   125 2016/12/15   4:21:21 PM
126 UNiT 1: WhOLe NUMBerS 126 UNiT 2: WhOLe NUMBerS: MULTiPLiCATiON
2. Continue to think of all the new multiplication facts that you can 
make from 2 × 7 = 14 and record them in a table like the one below.
Facts that can be easily formed by building on 2 × 7 = 14
× 7 70 700 7 000
2 14 140 1 400 14 000
20 1 400 14 000
200 14 000 140 000
2 000
4 28
40
400
4 000
3. See which facts you can build from 3 × 7 = 21, and record your 
results in a table like the one above.
4. See which facts you can build from 4 × 6 = 24, and record your 
results in a table like the one above.
You saw earlier that in order to build new facts from 2 × 7 = 14, you can 
double the answer to get 4 × 7 = 28, and then build further from there.
Here is another way to build on a known fact:
If you know that 4 × 7 = 28, you can add another 7 to get 5 × 7 = 35.
If you know that 6 × 8 = 48, you can add another 8 to get 7 × 8 = 56.
5. Now use addition, as explained above, to build new facts from each 
of the following:
(a) 7 × 7 = 49  (b) 5 × 6 = 30 (c) 2 × 9 = 18
(d) 5 × 7 = 35 (e) 7 × 9 = 63 (f) 6 × 4 = 24
6. Look again at the work you did in question 1. Were there any 
questions that you could not answer? Try to work out those answers 
now.
Maths_English_LB_Grade6_Book.indb   126 2016/12/15   4:21:21 PM
Page 3


 GrADe 6: MATheMATiCS [TerM 2] 125
Unit Whole n Umbers :
2
m Ulti Plic Ation 2.1 Extending multiplication facts
To do calculations such as 56 × 73 and 254 × 78, and to do  
multiplication with bigger numbers such as 357 × 472 and 7 358 × 573,  
you need to know basic multiplication facts such as 50 × 70 = 3 500  
very well. 
In this section, you will refresh your memory of multiplication facts.
1. For which of the following can you give the answers straight away? 
Write down only those answers that you know immediately. You 
can answer the others later. 
(a) 2 × 7 (b) 3 × 5 (c) 6 × 7 (d) 70 × 10
(e) 8 × 90 (f) 6 × 4 (g) 6 × 8 (h) 6 × 9
A multiplication fact that you know can often help you to build 
knowledge of another multiplication fact. Here are some examples:
If you know that 2 × 7 = 14, you also know that 7 × 2 = 14. 
You can easily see that
  2 × 70   = 140  and  70 × 2 = 140
  2 × 700  = 1 400  and 700 × 2 = 1 400
  2 × 7 000  = 14 000  and  7 000 × 2 = 14 000.
If you know that 2 × 70 = 140 and 70 × 2 = 140,  
you can also easily see that
  20 × 70  = 1 400  and  70 × 20 = 1 400
  200 × 70  = 14 000  and  70 × 200 = 14 000
  20 × 700  = 14 000  and  700 × 20 = 14 000
  200 × 700  = 140 000  and 700 × 200 = 140 000, and so on.
You can double the answer of 2 × 7 = 14 to get 4 × 7 = 28 and then you 
also know that 7 × 4 = 28. 
Maths_English_LB_Grade6_Book.indb   125 2016/12/15   4:21:21 PM
126 UNiT 1: WhOLe NUMBerS 126 UNiT 2: WhOLe NUMBerS: MULTiPLiCATiON
2. Continue to think of all the new multiplication facts that you can 
make from 2 × 7 = 14 and record them in a table like the one below.
Facts that can be easily formed by building on 2 × 7 = 14
× 7 70 700 7 000
2 14 140 1 400 14 000
20 1 400 14 000
200 14 000 140 000
2 000
4 28
40
400
4 000
3. See which facts you can build from 3 × 7 = 21, and record your 
results in a table like the one above.
4. See which facts you can build from 4 × 6 = 24, and record your 
results in a table like the one above.
You saw earlier that in order to build new facts from 2 × 7 = 14, you can 
double the answer to get 4 × 7 = 28, and then build further from there.
Here is another way to build on a known fact:
If you know that 4 × 7 = 28, you can add another 7 to get 5 × 7 = 35.
If you know that 6 × 8 = 48, you can add another 8 to get 7 × 8 = 56.
5. Now use addition, as explained above, to build new facts from each 
of the following:
(a) 7 × 7 = 49  (b) 5 × 6 = 30 (c) 2 × 9 = 18
(d) 5 × 7 = 35 (e) 7 × 9 = 63 (f) 6 × 4 = 24
6. Look again at the work you did in question 1. Were there any 
questions that you could not answer? Try to work out those answers 
now.
Maths_English_LB_Grade6_Book.indb   126 2016/12/15   4:21:21 PM
 GrADe 6: MATheMATiCS [TerM 2] 127
2.2 Summarise and practise multiplication facts
1. Complete this table.
× 6 9 4 10 3 2 5 8 7
7 42
3 12
8
5 45
9
2 10
6
4
10
2. Now complete this table.
× 4 90 60 7 30 8 5 20 10
50
3
6
70
40
9
80
4
10
When you have completed the tables in questions 1 and 2, answer 
question 3.
Maths_English_LB_Grade6_Book.indb   127 2016/12/15   4:21:22 PM
Page 4


 GrADe 6: MATheMATiCS [TerM 2] 125
Unit Whole n Umbers :
2
m Ulti Plic Ation 2.1 Extending multiplication facts
To do calculations such as 56 × 73 and 254 × 78, and to do  
multiplication with bigger numbers such as 357 × 472 and 7 358 × 573,  
you need to know basic multiplication facts such as 50 × 70 = 3 500  
very well. 
In this section, you will refresh your memory of multiplication facts.
1. For which of the following can you give the answers straight away? 
Write down only those answers that you know immediately. You 
can answer the others later. 
(a) 2 × 7 (b) 3 × 5 (c) 6 × 7 (d) 70 × 10
(e) 8 × 90 (f) 6 × 4 (g) 6 × 8 (h) 6 × 9
A multiplication fact that you know can often help you to build 
knowledge of another multiplication fact. Here are some examples:
If you know that 2 × 7 = 14, you also know that 7 × 2 = 14. 
You can easily see that
  2 × 70   = 140  and  70 × 2 = 140
  2 × 700  = 1 400  and 700 × 2 = 1 400
  2 × 7 000  = 14 000  and  7 000 × 2 = 14 000.
If you know that 2 × 70 = 140 and 70 × 2 = 140,  
you can also easily see that
  20 × 70  = 1 400  and  70 × 20 = 1 400
  200 × 70  = 14 000  and  70 × 200 = 14 000
  20 × 700  = 14 000  and  700 × 20 = 14 000
  200 × 700  = 140 000  and 700 × 200 = 140 000, and so on.
You can double the answer of 2 × 7 = 14 to get 4 × 7 = 28 and then you 
also know that 7 × 4 = 28. 
Maths_English_LB_Grade6_Book.indb   125 2016/12/15   4:21:21 PM
126 UNiT 1: WhOLe NUMBerS 126 UNiT 2: WhOLe NUMBerS: MULTiPLiCATiON
2. Continue to think of all the new multiplication facts that you can 
make from 2 × 7 = 14 and record them in a table like the one below.
Facts that can be easily formed by building on 2 × 7 = 14
× 7 70 700 7 000
2 14 140 1 400 14 000
20 1 400 14 000
200 14 000 140 000
2 000
4 28
40
400
4 000
3. See which facts you can build from 3 × 7 = 21, and record your 
results in a table like the one above.
4. See which facts you can build from 4 × 6 = 24, and record your 
results in a table like the one above.
You saw earlier that in order to build new facts from 2 × 7 = 14, you can 
double the answer to get 4 × 7 = 28, and then build further from there.
Here is another way to build on a known fact:
If you know that 4 × 7 = 28, you can add another 7 to get 5 × 7 = 35.
If you know that 6 × 8 = 48, you can add another 8 to get 7 × 8 = 56.
5. Now use addition, as explained above, to build new facts from each 
of the following:
(a) 7 × 7 = 49  (b) 5 × 6 = 30 (c) 2 × 9 = 18
(d) 5 × 7 = 35 (e) 7 × 9 = 63 (f) 6 × 4 = 24
6. Look again at the work you did in question 1. Were there any 
questions that you could not answer? Try to work out those answers 
now.
Maths_English_LB_Grade6_Book.indb   126 2016/12/15   4:21:21 PM
 GrADe 6: MATheMATiCS [TerM 2] 127
2.2 Summarise and practise multiplication facts
1. Complete this table.
× 6 9 4 10 3 2 5 8 7
7 42
3 12
8
5 45
9
2 10
6
4
10
2. Now complete this table.
× 4 90 60 7 30 8 5 20 10
50
3
6
70
40
9
80
4
10
When you have completed the tables in questions 1 and 2, answer 
question 3.
Maths_English_LB_Grade6_Book.indb   127 2016/12/15   4:21:22 PM
128 UNiT 1: WhOLe NUMBerS 128 UNiT 2: WhOLe NUMBerS: MULTiPLiCATiON
3. Calculate. 
(a) 41 × 7 (b) 94 × 50 
(c) 37 × 40 (d) 97 × 80
4. Now complete this table. 
× 40 900 60 70 300 80 500 20 100
50
30
600
70
400
90
800
40
100
When you have completed all three tables in this section, you can answer 
question 5.
5. Show how you can use the three tables to calculate the following:
(a) 900 × 40 (b) 940 × 70 
(c) 320 × 800 (d) 1 10 × 30 
(e) 540 × 90 (f) 170 × 800
2.3 Products and factors
You saw in the previous section how important it is that you know the 
“times tables” well. Every multiplication fact that you know can help 
you to build knowledge of other multiplication facts. In this section you 
will learn more multiplication skills. 
Start with questions 1 to 5. Answer all five questions. 
The multiplication facts in 
the tables you made can 
be helpful.
Maths_English_LB_Grade6_Book.indb   128 2016/12/15   4:21:22 PM
Page 5


 GrADe 6: MATheMATiCS [TerM 2] 125
Unit Whole n Umbers :
2
m Ulti Plic Ation 2.1 Extending multiplication facts
To do calculations such as 56 × 73 and 254 × 78, and to do  
multiplication with bigger numbers such as 357 × 472 and 7 358 × 573,  
you need to know basic multiplication facts such as 50 × 70 = 3 500  
very well. 
In this section, you will refresh your memory of multiplication facts.
1. For which of the following can you give the answers straight away? 
Write down only those answers that you know immediately. You 
can answer the others later. 
(a) 2 × 7 (b) 3 × 5 (c) 6 × 7 (d) 70 × 10
(e) 8 × 90 (f) 6 × 4 (g) 6 × 8 (h) 6 × 9
A multiplication fact that you know can often help you to build 
knowledge of another multiplication fact. Here are some examples:
If you know that 2 × 7 = 14, you also know that 7 × 2 = 14. 
You can easily see that
  2 × 70   = 140  and  70 × 2 = 140
  2 × 700  = 1 400  and 700 × 2 = 1 400
  2 × 7 000  = 14 000  and  7 000 × 2 = 14 000.
If you know that 2 × 70 = 140 and 70 × 2 = 140,  
you can also easily see that
  20 × 70  = 1 400  and  70 × 20 = 1 400
  200 × 70  = 14 000  and  70 × 200 = 14 000
  20 × 700  = 14 000  and  700 × 20 = 14 000
  200 × 700  = 140 000  and 700 × 200 = 140 000, and so on.
You can double the answer of 2 × 7 = 14 to get 4 × 7 = 28 and then you 
also know that 7 × 4 = 28. 
Maths_English_LB_Grade6_Book.indb   125 2016/12/15   4:21:21 PM
126 UNiT 1: WhOLe NUMBerS 126 UNiT 2: WhOLe NUMBerS: MULTiPLiCATiON
2. Continue to think of all the new multiplication facts that you can 
make from 2 × 7 = 14 and record them in a table like the one below.
Facts that can be easily formed by building on 2 × 7 = 14
× 7 70 700 7 000
2 14 140 1 400 14 000
20 1 400 14 000
200 14 000 140 000
2 000
4 28
40
400
4 000
3. See which facts you can build from 3 × 7 = 21, and record your 
results in a table like the one above.
4. See which facts you can build from 4 × 6 = 24, and record your 
results in a table like the one above.
You saw earlier that in order to build new facts from 2 × 7 = 14, you can 
double the answer to get 4 × 7 = 28, and then build further from there.
Here is another way to build on a known fact:
If you know that 4 × 7 = 28, you can add another 7 to get 5 × 7 = 35.
If you know that 6 × 8 = 48, you can add another 8 to get 7 × 8 = 56.
5. Now use addition, as explained above, to build new facts from each 
of the following:
(a) 7 × 7 = 49  (b) 5 × 6 = 30 (c) 2 × 9 = 18
(d) 5 × 7 = 35 (e) 7 × 9 = 63 (f) 6 × 4 = 24
6. Look again at the work you did in question 1. Were there any 
questions that you could not answer? Try to work out those answers 
now.
Maths_English_LB_Grade6_Book.indb   126 2016/12/15   4:21:21 PM
 GrADe 6: MATheMATiCS [TerM 2] 127
2.2 Summarise and practise multiplication facts
1. Complete this table.
× 6 9 4 10 3 2 5 8 7
7 42
3 12
8
5 45
9
2 10
6
4
10
2. Now complete this table.
× 4 90 60 7 30 8 5 20 10
50
3
6
70
40
9
80
4
10
When you have completed the tables in questions 1 and 2, answer 
question 3.
Maths_English_LB_Grade6_Book.indb   127 2016/12/15   4:21:22 PM
128 UNiT 1: WhOLe NUMBerS 128 UNiT 2: WhOLe NUMBerS: MULTiPLiCATiON
3. Calculate. 
(a) 41 × 7 (b) 94 × 50 
(c) 37 × 40 (d) 97 × 80
4. Now complete this table. 
× 40 900 60 70 300 80 500 20 100
50
30
600
70
400
90
800
40
100
When you have completed all three tables in this section, you can answer 
question 5.
5. Show how you can use the three tables to calculate the following:
(a) 900 × 40 (b) 940 × 70 
(c) 320 × 800 (d) 1 10 × 30 
(e) 540 × 90 (f) 170 × 800
2.3 Products and factors
You saw in the previous section how important it is that you know the 
“times tables” well. Every multiplication fact that you know can help 
you to build knowledge of other multiplication facts. In this section you 
will learn more multiplication skills. 
Start with questions 1 to 5. Answer all five questions. 
The multiplication facts in 
the tables you made can 
be helpful.
Maths_English_LB_Grade6_Book.indb   128 2016/12/15   4:21:22 PM
 GrADe 6: MATheMATiCS [TerM 2] 129
1. What is the easiest way to calculate 2 × 17 × 5?
2. Ben buys 5 bags of bananas. Each bag has 4 bunches of bananas 
with 3 bananas in each bunch. 
 (a) How many bananas does Ben buy?
 (b) Write down the calculation plan to calculate the number of  
 bananas.
3. (a) Siba buys 4 boxes of beads. In each box there are 10 packets 
 and every packet has 15 beads. How many beads does she 
 buy? Write down your calculation plan to calculate the number 
 of beads.
 (b) Marie buys 10 boxes of beads. In each box there are 15 
 packets and every packet has 4 beads. How many beads does 
 she buy? Write down your calculation plan to calculate the 
 number of beads.
 (c) Jeff buys 15 boxes of beads. In each box there are 10 packets 
 and every packet has 4 beads. How many beads does he 
 buy? Write down your calculation plan to calculate the number 
 of beads.
4. Compare your three calculation plans for question 3. What do you 
notice? 
If we multiply three or more 
numbers we can rearrange the 
numbers to change the order in  
which we multiply. It does not 
change the answer. This is a 
property of multiplication.
5. Calculate the following. Rearrange the numbers to make it easier.
 (a) 50 × 37 × 2
 (b) 4 × 68 × 25
 (c) 3 × 74 × 10
 (d) 5 × 22 × 8
When you have to  
multiply three or more 
numbers, you may  
rearrange the numbers 
to make the calculation 
easier.
Maths_English_LB_Grade6_Book.indb   129 2016/12/15   4:21:22 PM
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FAQs on Textbook: Whole numbers: Multiplication (Term 2) - Mathematics for Grade 6

1. What is multiplication of whole numbers?
Ans.Multiplication of whole numbers is a mathematical operation where one number is added to itself a certain number of times, based on the value of another number. For example, 4 multiplied by 3 (4 x 3) means adding 4 three times (4 + 4 + 4), which equals 12.
2. How do you multiply two-digit numbers by one-digit numbers?
Ans.To multiply a two-digit number by a one-digit number, you can use the distributive property. For example, to multiply 23 by 4, you can break it down: (20 + 3) x 4 = (20 x 4) + (3 x 4) = 80 + 12 = 92.
3. What are some strategies to help with multiplication facts?
Ans.Some effective strategies to help with multiplication facts include using flashcards, practicing multiplication tables, grouping numbers to make them easier to multiply, and using visual aids like arrays or number lines to understand the concept better.
4. How can I check my multiplication work for accuracy?
Ans.You can check your multiplication work by using the inverse operation, which is division. If you multiplied 6 by 7 to get 42, you can divide 42 by 6 or 7 to see if you return to the original number. If you do, your multiplication is likely correct.
5. Why is understanding multiplication important in everyday life?
Ans.Understanding multiplication is important in everyday life because it helps with budgeting, cooking, shopping, and measuring. For instance, if you buy 5 packs of pencils with each pack containing 10 pencils, knowing multiplication allows you to quickly find out that you have 50 pencils in total.
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