Taiwan · Grade 3 · Practice Sheet 10

1. 1.

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

   Formula:Skip Counting

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

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2. 2.

   Fill in the missing number: 7 + ___ = 10.

   Formula:Missing Addend

   $b = \text{total} - a$

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3. 3.

   What is double 24?

   Formula:Doubling

   $d = 2 \times n$

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4. 4.

   What is half of 40?

   Formula:Halving

   $h = n \div 2$

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5. 5.

   Subtract 9 from 84.

   Formula:Subtraction

   $\text{difference} = a - b$

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6. 6.

   Fill in the missing number: 11 + ___ = 18.

   Formula:Missing Addend

   $b = \text{total} - a$

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7. 7.

   Add 8 + 2 + 15.

   Formula:Addition of Three Numbers

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

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8. 8.

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

   Formula:Skip Counting

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

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9. 9.

   Add 20 and 58.

   Formula:Addition

   $\text{sum} = a + b$

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10. 10.

    There are 2 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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11. 11.

    Subtract 62 from 79.

    Formula:Subtraction

    $\text{difference} = a - b$

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12. 12.

    What is half of 36?

    Formula:Halving

    $h = n \div 2$

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13. 13.

    What is 6 × 2?

    Formula:Multiplication (Times Tables)

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

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14. 14.

    There are 2 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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15. 15.

    Add 71 and 20.

    Formula:Addition

    $\text{sum} = a + b$

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16. 16.

    Fill in the missing number: 12 + ___ = 18.

    Formula:Missing Addend

    $b = \text{total} - a$

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17. 17.

    What is double 23?

    Formula:Doubling

    $d = 2 \times n$

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18. 18.

    What is half of 16?

    Formula:Halving

    $h = n \div 2$

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19. 19.

    Add 58 and 51.

    Formula:Addition

    $\text{sum} = a + b$

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20. 20.

    What is double 2?

    Formula:Doubling

    $d = 2 \times n$

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