Bangladesh · Class 1 · Practice Sheet 9

1. 1.

   What is 16 − 9?

   Formula:Subtraction

   $\text{difference} = a - b$

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2. 2.

   Fill in the missing number: 4 + ___ = 6.

   Formula:Missing Addend

   $b = \text{total} - a$

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3. 3.

   What is double 17?

   Formula:Doubling

   $d = 2 \times n$

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4. 4.

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

   Formula:Skip Counting

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

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5. 5.

   Add 22 and 39.

   Formula:Addition

   $\text{sum} = a + b$

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6. 6.

   What is 9 + 8?

   Formula:Addition

   $\text{sum} = a + b$

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7. 7.

   Add 75 and 48.

   Formula:Addition

   $\text{sum} = a + b$

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8. 8.

   Fill in the missing number: 4 + ___ = 17.

   Formula:Missing Addend

   $b = \text{total} - a$

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9. 9.

   Continue the pattern by counting in 2s: 6, 8, ___

   Formula:Skip Counting

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

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10. 10.

    What is 6 + 8?

    Formula:Addition

    $\text{sum} = a + b$

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11. 11.

    Add 31 and 10.

    Formula:Addition

    $\text{sum} = a + b$

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12. 12.

    What is 3 + 8?

    Formula:Addition

    $\text{sum} = a + b$

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13. 13.

    Add 89 and 30.

    Formula:Addition

    $\text{sum} = a + b$

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14. 14.

    What is 11 − 6?

    Formula:Subtraction

    $\text{difference} = a - b$

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15. 15.

    Add 60 and 42.

    Formula:Addition

    $\text{sum} = a + b$

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16. 16.

    Fill in the missing number: 13 + ___ = 18.

    Formula:Missing Addend

    $b = \text{total} - a$

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17. 17.

    Continue the pattern by counting in 3s: 9, 12, ___

    Formula:Skip Counting

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

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18. 18.

    Add 63 and 23.

    Formula:Addition

    $\text{sum} = a + b$

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19. 19.

    What is 8 + 4?

    Formula:Addition

    $\text{sum} = a + b$

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20. 20.

    Continue the pattern by counting in 2s: 6, 8, ___

    Formula:Skip Counting

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

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