Singapore · Grade 3 · Practice Sheet 2

1. 1.

   Subtract 36 from 69.

   Formula:Subtraction

   $\text{difference} = a - b$

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2. 2.

   Add 5 + 13 + 17.

   Formula:Addition of Three Numbers

   $\text{sum} = a + b + c$

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3. 3.

   Add 76 and 18.

   Formula:Addition

   $\text{sum} = a + b$

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4. 4.

   Fill in the missing number: 15 + ___ = 30.

   Formula:Missing Addend

   $b = \text{total} - a$

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5. 5.

   There are 2 bags with 4 apples in each bag. How many apples are there in total?

   Formula:Multiplication as Repeated Addition

   $\text{total} = \text{groups} \times \text{size}$

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6. 6.

   Fill in the missing number: 11 + ___ = 19.

   Formula:Missing Addend

   $b = \text{total} - a$

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7. 7.

   18 sweets are shared equally among 6 children. How many does each child get?

   Formula:Division (Equal Sharing)

   $\text{each} = \text{total} \div \text{groups}$

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8. 8.

   How many tens are there in the number 96?

   Formula:Place Value

   $\text{value} = \text{tens} \times 10 + \text{ones}$

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9. 9.

   Add 19 + 14 + 5.

   Formula:Addition of Three Numbers

   $\text{sum} = a + b + c$

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10. 10.

    What is double 11?

    Formula:Doubling

    $d = 2 \times n$

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11. 11.

    Fill in the missing number: 8 + ___ = 12.

    Formula:Missing Addend

    $b = \text{total} - a$

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12. 12.

    Add 54 and 40.

    Formula:Addition

    $\text{sum} = a + b$

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13. 13.

    You have $8 and $8. How much money do you have altogether?

    Formula:Adding Money

    $\text{total} = a + b$

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14. 14.

    Fill in the missing number: 15 + ___ = 21.

    Formula:Missing Addend

    $b = \text{total} - a$

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15. 15.

    Subtract 19 from 34.

    Formula:Subtraction

    $\text{difference} = a - b$

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16. 16.

    Fill in the missing number: 3 + ___ = 17.

    Formula:Missing Addend

    $b = \text{total} - a$

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17. 17.

    What is double 16?

    Formula:Doubling

    $d = 2 \times n$

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18. 18.

    There are 4 bags with 2 apples in each bag. How many apples are there in total?

    Formula:Multiplication as Repeated Addition

    $\text{total} = \text{groups} \times \text{size}$

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19. 19.

    Fill in the missing number: 14 + ___ = 25.

    Formula:Missing Addend

    $b = \text{total} - a$

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20. 20.

    How many tens are there in the number 45?

    Formula:Place Value

    $\text{value} = \text{tens} \times 10 + \text{ones}$

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