Czechia · Grade 3 · Practice Sheet 20

1. 1.

   What is double 9?

   Formula:Doubling

   $d = 2 \times n$

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2. 2.

   There are 4 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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3. 3.

   What is 10 × 3?

   Formula:Multiplication (Times Tables)

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

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4. 4.

   How many tens are there in the number 98?

   Formula:Place Value

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

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5. 5.

   What is half of 10?

   Formula:Halving

   $h = n \div 2$

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6. 6.

   What is 4 × 8?

   Formula:Multiplication (Times Tables)

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

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7. 7.

   Add 32 and 28.

   Formula:Addition

   $\text{sum} = a + b$

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8. 8.

   Subtract 51 from 64.

   Formula:Subtraction

   $\text{difference} = a - b$

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9. 9.

   Fill in the missing number: 13 + ___ = 28.

   Formula:Missing Addend

   $b = \text{total} - a$

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10. 10.

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

    Formula:Skip Counting

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

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11. 11.

    What is double 2?

    Formula:Doubling

    $d = 2 \times n$

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12. 12.

    Fill in the missing number: 2 + ___ = 6.

    Formula:Missing Addend

    $b = \text{total} - a$

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13. 13.

    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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14. 14.

    What is double 16?

    Formula:Doubling

    $d = 2 \times n$

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15. 15.

    Subtract 18 from 32.

    Formula:Subtraction

    $\text{difference} = a - b$

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16. 16.

    How many tens are there in the number 60?

    Formula:Place Value

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

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17. 17.

    Continue the pattern by counting in 10s: 20, 30, ___

    Formula:Skip Counting

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

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18. 18.

    What is double 9?

    Formula:Doubling

    $d = 2 \times n$

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19. 19.

    Add 12 + 17 + 4.

    Formula:Addition of Three Numbers

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

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20. 20.

    24 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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