Mongolia · Grade 3 · Practice Sheet 37

1. 1.

   Fill in the missing number: 13 + ___ = 17.

   Formula:Missing Addend

   $b = \text{total} - a$

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2. 2.

   There are 6 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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3. 3.

   What is 2 × 9?

   Formula:Multiplication (Times Tables)

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

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4. 4.

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

   Formula:Missing Addend

   $b = \text{total} - a$

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5. 5.

   You have ₮6 and ₮9. How much money do you have altogether?

   Formula:Adding Money

   $\text{total} = a + b$

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6. 6.

   What is 6 × 8?

   Formula:Multiplication (Times Tables)

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

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7. 7.

   You have ₮7 and ₮1. How much money do you have altogether?

   Formula:Adding Money

   $\text{total} = a + b$

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8. 8.

   Add 18 + 9 + 15.

   Formula:Addition of Three Numbers

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

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9. 9.

   What is double 8?

   Formula:Doubling

   $d = 2 \times n$

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10. 10.

    What is half of 42?

    Formula:Halving

    $h = n \div 2$

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11. 11.

    Add 14 + 15 + 3.

    Formula:Addition of Three Numbers

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

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12. 12.

    Continue the pattern by counting in 5s: 10, 15, ___

    Formula:Skip Counting

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

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13. 13.

    28 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.

    Continue the pattern by counting in 10s: 0, 10, ___

    Formula:Skip Counting

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

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15. 15.

    What is double 4?

    Formula:Doubling

    $d = 2 \times n$

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16. 16.

    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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17. 17.

    What is 8 × 4?

    Formula:Multiplication (Times Tables)

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

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18. 18.

    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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19. 19.

    What is half of 42?

    Formula:Halving

    $h = n \div 2$

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20. 20.

    There are 6 bags with 5 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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