Spain · Grado 3 · Practice Sheet 1

1. 1.

   What is double 23?

   Formula:Doubling

   $d = 2 \times n$

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2. 2.

   Fill in the missing number: 5 + ___ = 11.

   Formula:Missing Addend

   $b = \text{total} - a$

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3. 3.

   What is half of 42?

   Formula:Halving

   $h = n \div 2$

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4. 4.

   Add 48 and 56.

   Formula:Addition

   $\text{sum} = a + b$

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5. 5.

   What is 9 × 10?

   Formula:Multiplication (Times Tables)

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

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6. 6.

   What is double 22?

   Formula:Doubling

   $d = 2 \times n$

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7. 7.

   8 sweets are shared equally among 4 children. How many does each child get?

   Formula:Division (Equal Sharing)

   $\text{each} = \text{total} \div \text{groups}$

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8. 8.

   Continue the pattern by counting in 10s: 30, 40, ___

   Formula:Skip Counting

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

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9. 9.

   You have €5 and €6. How much money do you have altogether?

   Formula:Adding Money

   $\text{total} = a + b$

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10. 10.

    How many tens are there in the number 41?

    Formula:Place Value

    $\text{value} = \text{tens} \times 10 + \text{ones}$

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11. 11.

    Subtract 44 from 50.

    Formula:Subtraction

    $\text{difference} = a - b$

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12. 12.

    What is double 13?

    Formula:Doubling

    $d = 2 \times n$

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13. 13.

    40 sweets are shared equally among 5 children. How many does each child get?

    Formula:Division (Equal Sharing)

    $\text{each} = \text{total} \div \text{groups}$

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14. 14.

    Add 18 + 18 + 18.

    Formula:Addition of Three Numbers

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

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15. 15.

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

    Formula:Missing Addend

    $b = \text{total} - a$

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16. 16.

    Add 43 and 15.

    Formula:Addition

    $\text{sum} = a + b$

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17. 17.

    What is 9 × 3?

    Formula:Multiplication (Times Tables)

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

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18. 18.

    Add 15 + 15 + 10.

    Formula:Addition of Three Numbers

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

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19. 19.

    Subtract 23 from 37.

    Formula:Subtraction

    $\text{difference} = a - b$

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20. 20.

    Add 11 + 17 + 14.

    Formula:Addition of Three Numbers

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

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