Vietnam · Grade 3 · Practice Sheet 10

1. 1.

   Subtract 22 from 50.

   Formula:Subtraction

   $\text{difference} = a - b$

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2. 2.

   Continue the pattern by counting in 5s: 0, 5, ___

   Formula:Skip Counting

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

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3. 3.

   Fill in the missing number: 14 + ___ = 19.

   Formula:Missing Addend

   $b = \text{total} - a$

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4. 4.

   What is double 18?

   Formula:Doubling

   $d = 2 \times n$

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5. 5.

   There are 2 bags with 7 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: 2 + ___ = 8.

   Formula:Missing Addend

   $b = \text{total} - a$

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7. 7.

   What is double 8?

   Formula:Doubling

   $d = 2 \times n$

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8. 8.

   You have VND 6 and VND 5. How much money do you have altogether?

   Formula:Adding Money

   $\text{total} = a + b$

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9. 9.

   36 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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10. 10.

    How many tens are there in the number 17?

    Formula:Place Value

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

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11. 11.

    Add 14 + 3 + 18.

    Formula:Addition of Three Numbers

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

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12. 12.

    Add 63 and 30.

    Formula:Addition

    $\text{sum} = a + b$

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13. 13.

    Fill in the missing number: 6 + ___ = 12.

    Formula:Missing Addend

    $b = \text{total} - a$

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14. 14.

    Add 39 and 53.

    Formula:Addition

    $\text{sum} = a + b$

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15. 15.

    You have VND 2 and VND 2. How much money do you have altogether?

    Formula:Adding Money

    $\text{total} = a + b$

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16. 16.

    Fill in the missing number: 3 + ___ = 18.

    Formula:Missing Addend

    $b = \text{total} - a$

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17. 17.

    Subtract 14 from 56.

    Formula:Subtraction

    $\text{difference} = a - b$

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18. 18.

    You have VND 7 and VND 2. How much money do you have altogether?

    Formula:Adding Money

    $\text{total} = a + b$

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19. 19.

    Subtract 28 from 50.

    Formula:Subtraction

    $\text{difference} = a - b$

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20. 20.

    There are 6 bags with 7 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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