Ecuador · Grado 3 · Practice Sheet 31

1. 1.

   What is double 19?

   Formula:Doubling

   $d = 2 \times n$

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2. 2.

   What is 9 × 5?

   Formula:Multiplication (Times Tables)

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

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3. 3.

   There are 2 bags with 5 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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4. 4.

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

   Formula:Skip Counting

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

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5. 5.

   Add 14 + 14 + 9.

   Formula:Addition of Three Numbers

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

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6. 6.

   What is 7 × 6?

   Formula:Multiplication (Times Tables)

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

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7. 7.

   What is double 10?

   Formula:Doubling

   $d = 2 \times n$

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8. 8.

   Subtract 6 from 30.

   Formula:Subtraction

   $\text{difference} = a - b$

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9. 9.

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

   Formula:Missing Addend

   $b = \text{total} - a$

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10. 10.

    You have $2 and $1. How much money do you have altogether?

    Formula:Adding Money

    $\text{total} = a + b$

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11. 11.

    What is 4 × 2?

    Formula:Multiplication (Times Tables)

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

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12. 12.

    Add 77 and 28.

    Formula:Addition

    $\text{sum} = a + b$

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13. 13.

    What is half of 18?

    Formula:Halving

    $h = n \div 2$

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14. 14.

    What is 3 × 10?

    Formula:Multiplication (Times Tables)

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

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15. 15.

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

    Formula:Adding Money

    $\text{total} = a + b$

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16. 16.

    What is half of 30?

    Formula:Halving

    $h = n \div 2$

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17. 17.

    What is 7 × 2?

    Formula:Multiplication (Times Tables)

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

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18. 18.

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

    Formula:Skip Counting

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

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19. 19.

    There are 2 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.

    12 sweets are shared equally among 6 children. How many does each child get?

    Formula:Division (Equal Sharing)

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

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