Taiwan · Grade 2 · Practice Sheet 23

1. 1.

   Subtract 18 from 55.

   Formula:Subtraction

   $\text{difference} = a - b$

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2. 2.

   Add 5 + 18 + 2.

   Formula:Addition of Three Numbers

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

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3. 3.

   Continue the pattern by counting in 2s: 4, 6, ___

   Formula:Skip Counting

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

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4. 4.

   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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5. 5.

   What is 12 − 10?

   Formula:Subtraction

   $\text{difference} = a - b$

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6. 6.

   Subtract 31 from 47.

   Formula:Subtraction

   $\text{difference} = a - b$

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7. 7.

   What is double 14?

   Formula:Doubling

   $d = 2 \times n$

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8. 8.

   What is half of 28?

   Formula:Halving

   $h = n \div 2$

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9. 9.

   Add 84 and 18.

   Formula:Addition

   $\text{sum} = a + b$

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10. 10.

    What is half of 34?

    Formula:Halving

    $h = n \div 2$

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11. 11.

    What is 7 + 1?

    Formula:Addition

    $\text{sum} = a + b$

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12. 12.

    Fill in the missing number: 5 + ___ = 19.

    Formula:Missing Addend

    $b = \text{total} - a$

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13. 13.

    What is 5 × 4?

    Formula:Multiplication (Times Tables)

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

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14. 14.

    There are 6 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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15. 15.

    Add 69 and 8.

    Formula:Addition

    $\text{sum} = a + b$

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16. 16.

    What is 9 − 4?

    Formula:Subtraction

    $\text{difference} = a - b$

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17. 17.

    Continue the pattern by counting in 3s: 0, 3, ___

    Formula:Skip Counting

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

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18. 18.

    What is half of 10?

    Formula:Halving

    $h = n \div 2$

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19. 19.

    What is 3 + 5?

    Formula:Addition

    $\text{sum} = a + b$

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20. 20.

    Continue the pattern by counting in 2s: 2, 4, ___

    Formula:Skip Counting

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

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