Mongolia · Grade 3 · Practice Sheet 47

1. 1.

   Subtract 53 from 59.

   Formula:Subtraction

   $\text{difference} = a - b$

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2. 2.

   Add 76 and 46.

   Formula:Addition

   $\text{sum} = a + b$

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3. 3.

   Subtract 14 from 37.

   Formula:Subtraction

   $\text{difference} = a - b$

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4. 4.

   Fill in the missing number: 2 + ___ = 12.

   Formula:Missing Addend

   $b = \text{total} - a$

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5. 5.

   What is half of 18?

   Formula:Halving

   $h = n \div 2$

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6. 6.

   Add 40 and 40.

   Formula:Addition

   $\text{sum} = a + b$

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7. 7.

   18 sweets are shared equally among 2 children. How many does each child get?

   Formula:Division (Equal Sharing)

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

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8. 8.

   Add 82 and 5.

   Formula:Addition

   $\text{sum} = a + b$

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9. 9.

   There are 6 bags with 3 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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10. 10.

    Add 8 + 14 + 12.

    Formula:Addition of Three Numbers

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

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11. 11.

    What is half of 24?

    Formula:Halving

    $h = n \div 2$

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12. 12.

    Continue the pattern by counting in 5s: 20, 25, ___

    Formula:Skip Counting

    $\text{next} = \text{term} + \text{step}$

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13. 13.

    Subtract 31 from 56.

    Formula:Subtraction

    $\text{difference} = a - b$

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14. 14.

    What is half of 14?

    Formula:Halving

    $h = n \div 2$

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15. 15.

    Continue the pattern by counting in 5s: 15, 20, ___

    Formula:Skip Counting

    $\text{next} = \text{term} + \text{step}$

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16. 16.

    Subtract 22 from 71.

    Formula:Subtraction

    $\text{difference} = a - b$

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17. 17.

    Fill in the missing number: 7 + ___ = 15.

    Formula:Missing Addend

    $b = \text{total} - a$

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18. 18.

    Add 12 + 8 + 2.

    Formula:Addition of Three Numbers

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

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19. 19.

    How many tens are there in the number 28?

    Formula:Place Value

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

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20. 20.

    Fill in the missing number: 14 + ___ = 29.

    Formula:Missing Addend

    $b = \text{total} - a$

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