Ireland · Year 1 · Practice Sheet 35

1. 1.

   Fill in the missing number: 14 + ___ = 24.

   Formula:Missing Addend

   $b = \text{total} - a$

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2. 2.

   What is double 20?

   Formula:Doubling

   $d = 2 \times n$

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3. 3.

   You have €5 and €9. How much money do you have altogether?

   Formula:Adding Money

   $\text{total} = a + b$

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4. 4.

   Add 53 and 18.

   Formula:Addition

   $\text{sum} = a + b$

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5. 5.

   You have €8 and €4. How much money do you have altogether?

   Formula:Adding Money

   $\text{total} = a + b$

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6. 6.

   Add 89 and 19.

   Formula:Addition

   $\text{sum} = a + b$

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7. 7.

   Fill in the missing number: 3 + ___ = 8.

   Formula:Missing Addend

   $b = \text{total} - a$

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8. 8.

   What is 4 + 5?

   Formula:Addition

   $\text{sum} = a + b$

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9. 9.

   What is double 8?

   Formula:Doubling

   $d = 2 \times n$

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10. 10.

    Add 15 and 13.

    Formula:Addition

    $\text{sum} = a + b$

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11. 11.

    What is 18 − 6?

    Formula:Subtraction

    $\text{difference} = a - b$

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12. 12.

    What is double 7?

    Formula:Doubling

    $d = 2 \times n$

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13. 13.

    You have €1 and €4. How much money do you have altogether?

    Formula:Adding Money

    $\text{total} = a + b$

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14. 14.

    Add 87 and 9.

    Formula:Addition

    $\text{sum} = a + b$

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15. 15.

    What is double 3?

    Formula:Doubling

    $d = 2 \times n$

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16. 16.

    What is 12 − 7?

    Formula:Subtraction

    $\text{difference} = a - b$

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17. 17.

    Add 28 and 43.

    Formula:Addition

    $\text{sum} = a + b$

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18. 18.

    You have €8 and €9. How much money do you have altogether?

    Formula:Adding Money

    $\text{total} = a + b$

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19. 19.

    What is 8 − 3?

    Formula:Subtraction

    $\text{difference} = a - b$

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20. 20.

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

    Formula:Skip Counting

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

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