Algeria · Grade 3 · Practice Sheet 17

1. 1.

   What is half of 38?

   Formula:Halving

   $h = n \div 2$

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2. 2.

   Subtract 39 from 68.

   Formula:Subtraction

   $\text{difference} = a - b$

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3. 3.

   What is double 19?

   Formula:Doubling

   $d = 2 \times n$

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4. 4.

   What is half of 42?

   Formula:Halving

   $h = n \div 2$

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5. 5.

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

   Formula:Skip Counting

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

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6. 6.

   Add 2 + 8 + 6.

   Formula:Addition of Three Numbers

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

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7. 7.

   There are 3 bags with 8 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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8. 8.

   Add 28 and 42.

   Formula:Addition

   $\text{sum} = a + b$

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9. 9.

   What is double 23?

   Formula:Doubling

   $d = 2 \times n$

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10. 10.

    What is 9 × 6?

    Formula:Multiplication (Times Tables)

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

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11. 11.

    Add 50 and 17.

    Formula:Addition

    $\text{sum} = a + b$

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12. 12.

    What is double 18?

    Formula:Doubling

    $d = 2 \times n$

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13. 13.

    Subtract 18 from 65.

    Formula:Subtraction

    $\text{difference} = a - b$

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14. 14.

    What is double 17?

    Formula:Doubling

    $d = 2 \times n$

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15. 15.

    What is 4 × 4?

    Formula:Multiplication (Times Tables)

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

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16. 16.

    Subtract 18 from 66.

    Formula:Subtraction

    $\text{difference} = a - b$

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17. 17.

    Fill in the missing number: 8 + ___ = 17.

    Formula:Missing Addend

    $b = \text{total} - a$

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18. 18.

    What is double 7?

    Formula:Doubling

    $d = 2 \times n$

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19. 19.

    There are 6 bags with 3 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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20. 20.

    Add 41 and 25.

    Formula:Addition

    $\text{sum} = a + b$

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