Mongolia · Grade 3 · Practice Sheet 28

1. 1.

   Add 11 + 19 + 3.

   Formula:Addition of Three Numbers

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

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2. 2.

   There are 4 bags with 8 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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3. 3.

   What is double 11?

   Formula:Doubling

   $d = 2 \times n$

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4. 4.

   Subtract 8 from 31.

   Formula:Subtraction

   $\text{difference} = a - b$

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5. 5.

   What is 9 × 8?

   Formula:Multiplication (Times Tables)

   $\text{product} = a \times b$

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6. 6.

   There are 5 bags with 6 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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7. 7.

   Continue the pattern by counting in 2s: 8, 10, ___

   Formula:Skip Counting

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

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8. 8.

   What is 2 × 2?

   Formula:Multiplication (Times Tables)

   $\text{product} = a \times b$

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9. 9.

   What is double 25?

   Formula:Doubling

   $d = 2 \times n$

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10. 10.

    What is half of 32?

    Formula:Halving

    $h = n \div 2$

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11. 11.

    What is 7 × 5?

    Formula:Multiplication (Times Tables)

    $\text{product} = a \times b$

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12. 12.

    Subtract 29 from 34.

    Formula:Subtraction

    $\text{difference} = a - b$

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13. 13.

    20 sweets are shared equally among 4 children. How many does each child get?

    Formula:Division (Equal Sharing)

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

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14. 14.

    Subtract 14 from 96.

    Formula:Subtraction

    $\text{difference} = a - b$

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15. 15.

    30 sweets are shared equally among 5 children. How many does each child get?

    Formula:Division (Equal Sharing)

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

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16. 16.

    Add 47 and 33.

    Formula:Addition

    $\text{sum} = a + b$

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17. 17.

    What is half of 38?

    Formula:Halving

    $h = n \div 2$

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18. 18.

    What is double 23?

    Formula:Doubling

    $d = 2 \times n$

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19. 19.

    9 sweets are shared equally among 3 children. How many does each child get?

    Formula:Division (Equal Sharing)

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

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20. 20.

    How many tens are there in the number 40?

    Formula:Place Value

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

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