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ME NT AL
MA T   HS
48
 
Tens and Ones
Summary
1. Ten 1 Rupee Coins = 10 rupees
  = 
2. Counting of in tens
 (a) ?35 = ?10 + ?10 + ?10 + ?5
  
 (b) 53 children = 50 children + 3 childrens
    10 + 10 + 10 + 10 + 10 1 + 1 + 1
    5            Cards 3        Cards
 Tens and ones cards
 Tens card 
 Ones card
 47 rats = 
10 10 10 10 10
1 1 1
10 10 10 10
1 1 1 1 1 1 1
10
1
10
1
Page 2


ME NT AL
MA T   HS
48
 
Tens and Ones
Summary
1. Ten 1 Rupee Coins = 10 rupees
  = 
2. Counting of in tens
 (a) ?35 = ?10 + ?10 + ?10 + ?5
  
 (b) 53 children = 50 children + 3 childrens
    10 + 10 + 10 + 10 + 10 1 + 1 + 1
    5            Cards 3        Cards
 Tens and ones cards
 Tens card 
 Ones card
 47 rats = 
10 10 10 10 10
1 1 1
10 10 10 10
1 1 1 1 1 1 1
10
1
10
1
ME NT AL
MA T   HS
49
1. Rita wants to buy a book which costs ?28. She has two ten rupee notes. 
How many one rupee coins she needs to buy that pen?
2. In a market Rahul and Ankit want to eat jalebi. One plate of Jalebi will 
cost them ?26. Rahul has one ?10 note only. Ankit gives him one note of 
ten rupee and rest he gives him one rupee coins. How many coins of one 
rupee he gives to Rahul?
Select the correct option: (Q 3 to 5)
3. 
  = ?
 (a) ?19 (b) ?16 (c) ?20 (d) ?18
4. 
  + = ?
 (a) ?30 (b) ?27 (c) ?28 (d) ?26
5. 15? = ? +
 (a) (b) (c) (d)
Page 3


ME NT AL
MA T   HS
48
 
Tens and Ones
Summary
1. Ten 1 Rupee Coins = 10 rupees
  = 
2. Counting of in tens
 (a) ?35 = ?10 + ?10 + ?10 + ?5
  
 (b) 53 children = 50 children + 3 childrens
    10 + 10 + 10 + 10 + 10 1 + 1 + 1
    5            Cards 3        Cards
 Tens and ones cards
 Tens card 
 Ones card
 47 rats = 
10 10 10 10 10
1 1 1
10 10 10 10
1 1 1 1 1 1 1
10
1
10
1
ME NT AL
MA T   HS
49
1. Rita wants to buy a book which costs ?28. She has two ten rupee notes. 
How many one rupee coins she needs to buy that pen?
2. In a market Rahul and Ankit want to eat jalebi. One plate of Jalebi will 
cost them ?26. Rahul has one ?10 note only. Ankit gives him one note of 
ten rupee and rest he gives him one rupee coins. How many coins of one 
rupee he gives to Rahul?
Select the correct option: (Q 3 to 5)
3. 
  = ?
 (a) ?19 (b) ?16 (c) ?20 (d) ?18
4. 
  + = ?
 (a) ?30 (b) ?27 (c) ?28 (d) ?26
5. 15? = ? +
 (a) (b) (c) (d)
ME NT AL
MA T   HS
50
6. How much money do the notes and coins make (Q6 to 9)
 (a) ?10 (b) ?12 (c) ?13 (d) ?9
7. 
 (a) ?22 (b) ?30 (c) ?23 (d) ?24
8. 
 (a) ?32 (b) ?33 (c) ?40 (d) ?29
9. 
 (a) ?23 (b) ?26 (c) ?33 (d) ?25
Page 4


ME NT AL
MA T   HS
48
 
Tens and Ones
Summary
1. Ten 1 Rupee Coins = 10 rupees
  = 
2. Counting of in tens
 (a) ?35 = ?10 + ?10 + ?10 + ?5
  
 (b) 53 children = 50 children + 3 childrens
    10 + 10 + 10 + 10 + 10 1 + 1 + 1
    5            Cards 3        Cards
 Tens and ones cards
 Tens card 
 Ones card
 47 rats = 
10 10 10 10 10
1 1 1
10 10 10 10
1 1 1 1 1 1 1
10
1
10
1
ME NT AL
MA T   HS
49
1. Rita wants to buy a book which costs ?28. She has two ten rupee notes. 
How many one rupee coins she needs to buy that pen?
2. In a market Rahul and Ankit want to eat jalebi. One plate of Jalebi will 
cost them ?26. Rahul has one ?10 note only. Ankit gives him one note of 
ten rupee and rest he gives him one rupee coins. How many coins of one 
rupee he gives to Rahul?
Select the correct option: (Q 3 to 5)
3. 
  = ?
 (a) ?19 (b) ?16 (c) ?20 (d) ?18
4. 
  + = ?
 (a) ?30 (b) ?27 (c) ?28 (d) ?26
5. 15? = ? +
 (a) (b) (c) (d)
ME NT AL
MA T   HS
50
6. How much money do the notes and coins make (Q6 to 9)
 (a) ?10 (b) ?12 (c) ?13 (d) ?9
7. 
 (a) ?22 (b) ?30 (c) ?23 (d) ?24
8. 
 (a) ?32 (b) ?33 (c) ?40 (d) ?29
9. 
 (a) ?23 (b) ?26 (c) ?33 (d) ?25
ME NT AL
MA T   HS
51
10. In brother’s marriage Raju was asked to pack laddoos in boxes. He had 
to pack 100 laddoos. How many boxes he used to pack these laddoos 10 
laddoos per box?
11. `25 =  `20  +   
12. How many `10  notes are required to make `100.
  
 See the Notice board of Fruit Market:
Fruit Rate
Banana ?18 /kg
Oranges ?24 /kg
Grapes ?60 /kg
Apples ?85 /kg
Y ou went there to buy some fruits. Answer my questions (from 13 to 17)
14. For which fruit one rupee coins are not required?
15. For which 1 kg fruit you require one ten rupee note and 8 coins of one 
rupee?
16. You bought two kilograms of oranges. You had four ten rupee notes and 
rest your father gave you. How many coins of one rupee he gave you?
17. How many ten rupee notes are required to buy 1 kg of grapes?
18. Arun want to buy a bat cost `68. He has 5 notes of Rupee 10. How much 
money does he need?
Page 5


ME NT AL
MA T   HS
48
 
Tens and Ones
Summary
1. Ten 1 Rupee Coins = 10 rupees
  = 
2. Counting of in tens
 (a) ?35 = ?10 + ?10 + ?10 + ?5
  
 (b) 53 children = 50 children + 3 childrens
    10 + 10 + 10 + 10 + 10 1 + 1 + 1
    5            Cards 3        Cards
 Tens and ones cards
 Tens card 
 Ones card
 47 rats = 
10 10 10 10 10
1 1 1
10 10 10 10
1 1 1 1 1 1 1
10
1
10
1
ME NT AL
MA T   HS
49
1. Rita wants to buy a book which costs ?28. She has two ten rupee notes. 
How many one rupee coins she needs to buy that pen?
2. In a market Rahul and Ankit want to eat jalebi. One plate of Jalebi will 
cost them ?26. Rahul has one ?10 note only. Ankit gives him one note of 
ten rupee and rest he gives him one rupee coins. How many coins of one 
rupee he gives to Rahul?
Select the correct option: (Q 3 to 5)
3. 
  = ?
 (a) ?19 (b) ?16 (c) ?20 (d) ?18
4. 
  + = ?
 (a) ?30 (b) ?27 (c) ?28 (d) ?26
5. 15? = ? +
 (a) (b) (c) (d)
ME NT AL
MA T   HS
50
6. How much money do the notes and coins make (Q6 to 9)
 (a) ?10 (b) ?12 (c) ?13 (d) ?9
7. 
 (a) ?22 (b) ?30 (c) ?23 (d) ?24
8. 
 (a) ?32 (b) ?33 (c) ?40 (d) ?29
9. 
 (a) ?23 (b) ?26 (c) ?33 (d) ?25
ME NT AL
MA T   HS
51
10. In brother’s marriage Raju was asked to pack laddoos in boxes. He had 
to pack 100 laddoos. How many boxes he used to pack these laddoos 10 
laddoos per box?
11. `25 =  `20  +   
12. How many `10  notes are required to make `100.
  
 See the Notice board of Fruit Market:
Fruit Rate
Banana ?18 /kg
Oranges ?24 /kg
Grapes ?60 /kg
Apples ?85 /kg
Y ou went there to buy some fruits. Answer my questions (from 13 to 17)
14. For which fruit one rupee coins are not required?
15. For which 1 kg fruit you require one ten rupee note and 8 coins of one 
rupee?
16. You bought two kilograms of oranges. You had four ten rupee notes and 
rest your father gave you. How many coins of one rupee he gave you?
17. How many ten rupee notes are required to buy 1 kg of grapes?
18. Arun want to buy a bat cost `68. He has 5 notes of Rupee 10. How much 
money does he need?
ME NT AL
MA T   HS
52
19. Look at this row of flowers
 How many flowers are required to make 8 such rows?
20. 18 students are playing in the garden. 7 more students join them. How 
many groups of 5 students are there in play ground?
Answer Key
1. 8 11. `5
2. 6 12. 10 notes of  ?10
3. b 13. 8 ten rupee notes and 5 one rupee coins 
4. c 14. Grapes
5. b 15. Banana
6. A (`10) 16. 8 coins
7. D 17. 6 Notes
8. B 18. `18
9. b 19. 80 flowers
10. 10 boxes 20 5 groups
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FAQs on Printable Worksheet: Tens and Ones - Mental Maths - Class 1

1. What are tens and ones in the context of place value?
Ans.Tens and ones are the two basic units used in the place value system of numbers. In this system, the digit in the ones place represents how many single units there are, while the digit in the tens place represents how many groups of ten units are present. For example, in the number 34, the digit 3 is in the tens place (representing 30) and the digit 4 is in the ones place (representing 4).
2. How do you convert a two-digit number into tens and ones?
Ans.To convert a two-digit number into tens and ones, you can break the number down into its components. For instance, if you have the number 56, you can identify that there are 5 tens (50) and 6 ones. You can express this by saying 56 = 5 tens + 6 ones.
3. Why is understanding tens and ones important in mathematics?
Ans.Understanding tens and ones is crucial in mathematics as it lays the foundation for more complex arithmetic operations, such as addition and subtraction. It helps students grasp the concept of place value, which is essential for understanding larger numbers and performing calculations correctly.
4. How can I practice identifying tens and ones with my child?
Ans. You can practice identifying tens and ones with your child through various activities. Use physical objects like blocks or counters to visually demonstrate groups of ten and single units. Additionally, you can create worksheets where children are asked to break down numbers into tens and ones or draw representations of given numbers.
5. What are some examples of activities to teach tens and ones?
Ans. Some effective activities to teach tens and ones include using a place value chart where children can place numbers in the correct columns, playing games that involve grouping items into tens and ones, and using number lines to visualize the addition of tens. You can also use colorful manipulatives to make learning more engaging and fun.
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