Mongolia · Grade 3 · Practice Sheet 27

1. 1.

   What is half of 50?

   Formula:Halving

   $h = n \div 2$

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2. 2.

   You have ₮1 and ₮9. How much money do you have altogether?

   Formula:Adding Money

   $\text{total} = a + b$

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3. 3.

   Subtract 43 from 67.

   Formula:Subtraction

   $\text{difference} = a - b$

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4. 4.

   What is half of 16?

   Formula:Halving

   $h = n \div 2$

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5. 5.

   Subtract 90 from 97.

   Formula:Subtraction

   $\text{difference} = a - b$

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6. 6.

   Fill in the missing number: 12 + ___ = 19.

   Formula:Missing Addend

   $b = \text{total} - a$

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7. 7.

   Add 19 + 11 + 18.

   Formula:Addition of Three Numbers

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

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8. 8.

   You have ₮1 and ₮4. How much money do you have altogether?

   Formula:Adding Money

   $\text{total} = a + b$

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9. 9.

   How many tens are there in the number 14?

   Formula:Place Value

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

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10. 10.

    What is 9 × 4?

    Formula:Multiplication (Times Tables)

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

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11. 11.

    Add 5 + 12 + 15.

    Formula:Addition of Three Numbers

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

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12. 12.

    Continue the pattern by counting in 3s: 9, 12, ___

    Formula:Skip Counting

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

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13. 13.

    Add 6 + 4 + 17.

    Formula:Addition of Three Numbers

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

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14. 14.

    Add 57 and 11.

    Formula:Addition

    $\text{sum} = a + b$

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15. 15.

    How many tens are there in the number 13?

    Formula:Place Value

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

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16. 16.

    Add 20 + 13 + 14.

    Formula:Addition of Three Numbers

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

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17. 17.

    Add 27 and 30.

    Formula:Addition

    $\text{sum} = a + b$

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18. 18.

    What is half of 22?

    Formula:Halving

    $h = n \div 2$

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19. 19.

    Fill in the missing number: 8 + ___ = 21.

    Formula:Missing Addend

    $b = \text{total} - a$

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20. 20.

    42 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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