Taiwan · Grade 1 · Practice Sheet 23

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.

   Add 12 and 22.

   Formula:Addition

   $\text{sum} = a + b$

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3. 3.

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

   Formula:Missing Addend

   $b = \text{total} - a$

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4. 4.

   What is 9 − 6?

   Formula:Subtraction

   $\text{difference} = a - b$

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5. 5.

   You have NT$ 7 and NT$ 5. How much money do you have altogether?

   Formula:Adding Money

   $\text{total} = a + b$

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6. 6.

   What is double 5?

   Formula:Doubling

   $d = 2 \times n$

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7. 7.

   Add 24 and 8.

   Formula:Addition

   $\text{sum} = a + b$

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8. 8.

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

   Formula:Skip Counting

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

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9. 9.

   You have NT$ 9 and NT$ 4. How much money do you have altogether?

   Formula:Adding Money

   $\text{total} = a + b$

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10. 10.

    Fill in the missing number: 7 + ___ = 22.

    Formula:Missing Addend

    $b = \text{total} - a$

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11. 11.

    What is 6 + 2?

    Formula:Addition

    $\text{sum} = a + b$

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12. 12.

    Add 49 and 45.

    Formula:Addition

    $\text{sum} = a + b$

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13. 13.

    What is 16 − 13?

    Formula:Subtraction

    $\text{difference} = a - b$

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14. 14.

    What is double 4?

    Formula:Doubling

    $d = 2 \times n$

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15. 15.

    Add 77 and 49.

    Formula:Addition

    $\text{sum} = a + b$

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16. 16.

    Fill in the missing number: 10 + ___ = 18.

    Formula:Missing Addend

    $b = \text{total} - a$

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17. 17.

    What is 12 − 5?

    Formula:Subtraction

    $\text{difference} = a - b$

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18. 18.

    What is double 10?

    Formula:Doubling

    $d = 2 \times n$

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19. 19.

    Add 48 and 39.

    Formula:Addition

    $\text{sum} = a + b$

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20. 20.

    What is 9 + 1?

    Formula:Addition

    $\text{sum} = a + b$

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