Chile · Grado 3 · Practice Sheet 5

1. 1.

   Add 11 + 7 + 18.

   Formula:Addition of Three Numbers

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

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2. 2.

   What is double 14?

   Formula:Doubling

   $d = 2 \times n$

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3. 3.

   There are 4 bags with 2 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.

   What is half of 48?

   Formula:Halving

   $h = n \div 2$

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5. 5.

   Subtract 17 from 37.

   Formula:Subtraction

   $\text{difference} = a - b$

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6. 6.

   Add 10 + 18 + 16.

   Formula:Addition of Three Numbers

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

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7. 7.

   Fill in the missing number: 8 + ___ = 16.

   Formula:Missing Addend

   $b = \text{total} - a$

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8. 8.

   Subtract 16 from 66.

   Formula:Subtraction

   $\text{difference} = a - b$

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9. 9.

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

   Formula:Skip Counting

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

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10. 10.

    Add 20 and 19.

    Formula:Addition

    $\text{sum} = a + b$

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11. 11.

    What is double 23?

    Formula:Doubling

    $d = 2 \times n$

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12. 12.

    Continue the pattern by counting in 3s: 12, 15, ___

    Formula:Skip Counting

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

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13. 13.

    Add 10 + 5 + 13.

    Formula:Addition of Three Numbers

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

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14. 14.

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

    Formula:Skip Counting

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

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15. 15.

    Subtract 10 from 65.

    Formula:Subtraction

    $\text{difference} = a - b$

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16. 16.

    What is double 22?

    Formula:Doubling

    $d = 2 \times n$

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17. 17.

    4 sweets are shared equally among 2 children. How many does each child get?

    Formula:Division (Equal Sharing)

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

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18. 18.

    You have $8 and $7. How much money do you have altogether?

    Formula:Adding Money

    $\text{total} = a + b$

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19. 19.

    12 sweets are shared equally among 2 children. How many does each child get?

    Formula:Division (Equal Sharing)

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

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20. 20.

    You have $2 and $3. How much money do you have altogether?

    Formula:Adding Money

    $\text{total} = a + b$

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