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Multiplication
(Refer to the chapter # 1, 6, 11 of the NCERT Maths Book of Class IV)
Summary
Multiplication is one of the four basic operations in mathematics. It is a
process of repeated addition. The symbol ‘ x’ denotes multiplication.
How many blades are there in 4 fans?
1 fan has 3 blades
4 fans will have 3+3+3+3 = 12 blades
It can also be written as 4 times 3 = 12 blades
4 × 3 = 12 blades
• If we multiply a number by 1, we get the same number
6 × 1 = 6 23 × 1 = 23 405 × 1 = 405
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Multiplication
(Refer to the chapter # 1, 6, 11 of the NCERT Maths Book of Class IV)
Summary
Multiplication is one of the four basic operations in mathematics. It is a
process of repeated addition. The symbol ‘ x’ denotes multiplication.
How many blades are there in 4 fans?
1 fan has 3 blades
4 fans will have 3+3+3+3 = 12 blades
It can also be written as 4 times 3 = 12 blades
4 × 3 = 12 blades
• If we multiply a number by 1, we get the same number
6 × 1 = 6 23 × 1 = 23 405 × 1 = 405
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• If we multiply a number by 0, we get 0
• When we multiply the given numbers in any order the product remains
the same.
Questions
1. A shopkeeper sold a notebook for ?20/- each. How much would he earn
by selling 250 such notebooks?
2. How many days are there in 5 weeks?
3. A magician charges ?2,500 for a single show. How much money will he
charge for 8 shows?
4. How many legs do 42 cows have?
5. How many boxes are there in the given figure?
4 × 0 = 4 76 × 0 = 0 823, 623 × 0 = 0
2 × 3 = 6
3 × 2 = 6
4 × 2 × 5 = 40
2 × 4 × 5 = 40
5 × 4 × 2 = 40
12 × 9 = 108
9 × 12 = 108
8
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M E
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Multiplication
(Refer to the chapter # 1, 6, 11 of the NCERT Maths Book of Class IV)
Summary
Multiplication is one of the four basic operations in mathematics. It is a
process of repeated addition. The symbol ‘ x’ denotes multiplication.
How many blades are there in 4 fans?
1 fan has 3 blades
4 fans will have 3+3+3+3 = 12 blades
It can also be written as 4 times 3 = 12 blades
4 × 3 = 12 blades
• If we multiply a number by 1, we get the same number
6 × 1 = 6 23 × 1 = 23 405 × 1 = 405
M E
N
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T H
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31
• If we multiply a number by 0, we get 0
• When we multiply the given numbers in any order the product remains
the same.
Questions
1. A shopkeeper sold a notebook for ?20/- each. How much would he earn
by selling 250 such notebooks?
2. How many days are there in 5 weeks?
3. A magician charges ?2,500 for a single show. How much money will he
charge for 8 shows?
4. How many legs do 42 cows have?
5. How many boxes are there in the given figure?
4 × 0 = 4 76 × 0 = 0 823, 623 × 0 = 0
2 × 3 = 6
3 × 2 = 6
4 × 2 × 5 = 40
2 × 4 × 5 = 40
5 × 4 × 2 = 40
12 × 9 = 108
9 × 12 = 108
8
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6. How many trees are there in Devanshi’s Garden?
7. The price of one brick is ?15. What will be the total price of 50 bricks?
8. A brick manufacturing factory produces 10,000 bricks in a day. How many
bricks did it produce in the month of February 2016?
9. A worker gets ?200 for constructing 6 metre long wall. How many rupees
will he get for constructing 30 metre long wall?
10. If one truck charges ?300 for transporting 1,000 bricks, then how much
would it charge for transporting 8,000 bricks?
11. 18 bricks of 20 cm length are joined length wise to form a wall. What is the
total length of the wall?
12. Sunita earns ?800 in a day, how much will she earn in a week?
13. (i) 15 × 30 = 450, what will be 15 × 33 =
(ii) 45 × 93 × = 93 × 63 × 45
(iii) 98,645 × 1 =
(iv) 468 × 234 × 0 × 364 =
(v) 900 × 2,000 =
14. Fees of a dance class is ?500 per student. How much fee will the dance
teacher charge from 45 students?
15. If a frog covers 3 steps in one jump, then on which step would it reach after
9 jumps?
1
2 3
45
67 89 10
11
12
13
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M E
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Multiplication
(Refer to the chapter # 1, 6, 11 of the NCERT Maths Book of Class IV)
Summary
Multiplication is one of the four basic operations in mathematics. It is a
process of repeated addition. The symbol ‘ x’ denotes multiplication.
How many blades are there in 4 fans?
1 fan has 3 blades
4 fans will have 3+3+3+3 = 12 blades
It can also be written as 4 times 3 = 12 blades
4 × 3 = 12 blades
• If we multiply a number by 1, we get the same number
6 × 1 = 6 23 × 1 = 23 405 × 1 = 405
M E
N
T
A
L
M
A
T H
S
31
• If we multiply a number by 0, we get 0
• When we multiply the given numbers in any order the product remains
the same.
Questions
1. A shopkeeper sold a notebook for ?20/- each. How much would he earn
by selling 250 such notebooks?
2. How many days are there in 5 weeks?
3. A magician charges ?2,500 for a single show. How much money will he
charge for 8 shows?
4. How many legs do 42 cows have?
5. How many boxes are there in the given figure?
4 × 0 = 4 76 × 0 = 0 823, 623 × 0 = 0
2 × 3 = 6
3 × 2 = 6
4 × 2 × 5 = 40
2 × 4 × 5 = 40
5 × 4 × 2 = 40
12 × 9 = 108
9 × 12 = 108
8
5
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6. How many trees are there in Devanshi’s Garden?
7. The price of one brick is ?15. What will be the total price of 50 bricks?
8. A brick manufacturing factory produces 10,000 bricks in a day. How many
bricks did it produce in the month of February 2016?
9. A worker gets ?200 for constructing 6 metre long wall. How many rupees
will he get for constructing 30 metre long wall?
10. If one truck charges ?300 for transporting 1,000 bricks, then how much
would it charge for transporting 8,000 bricks?
11. 18 bricks of 20 cm length are joined length wise to form a wall. What is the
total length of the wall?
12. Sunita earns ?800 in a day, how much will she earn in a week?
13. (i) 15 × 30 = 450, what will be 15 × 33 =
(ii) 45 × 93 × = 93 × 63 × 45
(iii) 98,645 × 1 =
(iv) 468 × 234 × 0 × 364 =
(v) 900 × 2,000 =
14. Fees of a dance class is ?500 per student. How much fee will the dance
teacher charge from 45 students?
15. If a frog covers 3 steps in one jump, then on which step would it reach after
9 jumps?
1
2 3
45
67 89 10
11
12
13
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Answer Key
1. ?5,000
2. 35 days
3. ?20,000
4. 168 legs
5. 40 boxes
6. 28 trees
7. ?750
8. 2,90,000 bricks
9. ?1,000
10. ?2,400
11. 360 cm
12. ?5,600
13. (i) 495 (ii) 63 (iii) 98,645 (iv) 0 (v) 18,00,000
14. ?22,500
15. 27
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M E
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Multiplication
(Refer to the chapter # 1, 6, 11 of the NCERT Maths Book of Class IV)
Summary
Multiplication is one of the four basic operations in mathematics. It is a
process of repeated addition. The symbol ‘ x’ denotes multiplication.
How many blades are there in 4 fans?
1 fan has 3 blades
4 fans will have 3+3+3+3 = 12 blades
It can also be written as 4 times 3 = 12 blades
4 × 3 = 12 blades
• If we multiply a number by 1, we get the same number
6 × 1 = 6 23 × 1 = 23 405 × 1 = 405
M E
N
T
A
L
M
A
T H
S
31
• If we multiply a number by 0, we get 0
• When we multiply the given numbers in any order the product remains
the same.
Questions
1. A shopkeeper sold a notebook for ?20/- each. How much would he earn
by selling 250 such notebooks?
2. How many days are there in 5 weeks?
3. A magician charges ?2,500 for a single show. How much money will he
charge for 8 shows?
4. How many legs do 42 cows have?
5. How many boxes are there in the given figure?
4 × 0 = 4 76 × 0 = 0 823, 623 × 0 = 0
2 × 3 = 6
3 × 2 = 6
4 × 2 × 5 = 40
2 × 4 × 5 = 40
5 × 4 × 2 = 40
12 × 9 = 108
9 × 12 = 108
8
5
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6. How many trees are there in Devanshi’s Garden?
7. The price of one brick is ?15. What will be the total price of 50 bricks?
8. A brick manufacturing factory produces 10,000 bricks in a day. How many
bricks did it produce in the month of February 2016?
9. A worker gets ?200 for constructing 6 metre long wall. How many rupees
will he get for constructing 30 metre long wall?
10. If one truck charges ?300 for transporting 1,000 bricks, then how much
would it charge for transporting 8,000 bricks?
11. 18 bricks of 20 cm length are joined length wise to form a wall. What is the
total length of the wall?
12. Sunita earns ?800 in a day, how much will she earn in a week?
13. (i) 15 × 30 = 450, what will be 15 × 33 =
(ii) 45 × 93 × = 93 × 63 × 45
(iii) 98,645 × 1 =
(iv) 468 × 234 × 0 × 364 =
(v) 900 × 2,000 =
14. Fees of a dance class is ?500 per student. How much fee will the dance
teacher charge from 45 students?
15. If a frog covers 3 steps in one jump, then on which step would it reach after
9 jumps?
1
2 3
45
67 89 10
11
12
13
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Answer Key
1. ?5,000
2. 35 days
3. ?20,000
4. 168 legs
5. 40 boxes
6. 28 trees
7. ?750
8. 2,90,000 bricks
9. ?1,000
10. ?2,400
11. 360 cm
12. ?5,600
13. (i) 495 (ii) 63 (iii) 98,645 (iv) 0 (v) 18,00,000
14. ?22,500
15. 27
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ACTIVITY
Make 4 teams of 3 students each. Take three dice. Every team gets a
chance to roll the dice. Note the numbers shown on the top face of the
dice. Multiply these numbers. Product of these three numbers is the score
of the team. Every team will get 10 chances. The team which scores the
most after 10 chances will win.
4 × 1 × 5 = 20
SCORE SHEET
Team A Team B Team C Team D
I
II
III
IV
V
VI
VII
VIII
IX
X
Total
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