Czechia · Grade 3 · Practice Sheet 19

1. 1.

   Fill in the missing number: 15 + ___ = 29.

   Formula:Missing Addend

   $b = \text{total} - a$

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2. 2.

   Add 32 and 11.

   Formula:Addition

   $\text{sum} = a + b$

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3. 3.

   Add 12 + 13 + 17.

   Formula:Addition of Three Numbers

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

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4. 4.

   Continue the pattern by counting in 2s: 0, 2, ___

   Formula:Skip Counting

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

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5. 5.

   Fill in the missing number: 2 + ___ = 7.

   Formula:Missing Addend

   $b = \text{total} - a$

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6. 6.

   Subtract 31 from 99.

   Formula:Subtraction

   $\text{difference} = a - b$

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7. 7.

   How many tens are there in the number 32?

   Formula:Place Value

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

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8. 8.

   Add 14 and 53.

   Formula:Addition

   $\text{sum} = a + b$

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9. 9.

   How many tens are there in the number 31?

   Formula:Place Value

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

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10. 10.

    Subtract 30 from 40.

    Formula:Subtraction

    $\text{difference} = a - b$

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11. 11.

    Add 8 + 4 + 14.

    Formula:Addition of Three Numbers

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

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12. 12.

    14 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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13. 13.

    Fill in the missing number: 4 + ___ = 12.

    Formula:Missing Addend

    $b = \text{total} - a$

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14. 14.

    What is double 24?

    Formula:Doubling

    $d = 2 \times n$

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15. 15.

    What is half of 48?

    Formula:Halving

    $h = n \div 2$

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16. 16.

    8 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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17. 17.

    Fill in the missing number: 7 + ___ = 21.

    Formula:Missing Addend

    $b = \text{total} - a$

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18. 18.

    Add 77 and 27.

    Formula:Addition

    $\text{sum} = a + b$

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19. 19.

    Continue the pattern by counting in 3s: 12, 15, ___

    Formula:Skip Counting

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

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20. 20.

    Add 10 and 17.

    Formula:Addition

    $\text{sum} = a + b$

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