Peru · Grado 3 · Practice Sheet 24

1. 1.

   Subtract 10 from 65.

   Formula:Subtraction

   $\text{difference} = a - b$

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2. 2.

   How many tens are there in the number 28?

   Formula:Place Value

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

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3. 3.

   Add 11 and 33.

   Formula:Addition

   $\text{sum} = a + b$

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4. 4.

   What is double 16?

   Formula:Doubling

   $d = 2 \times n$

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5. 5.

   Continue the pattern by counting in 10s: 0, 10, ___

   Formula:Skip Counting

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

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6. 6.

   Subtract 16 from 35.

   Formula:Subtraction

   $\text{difference} = a - b$

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7. 7.

   Continue the pattern by counting in 2s: 4, 6, ___

   Formula:Skip Counting

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

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8. 8.

   How many tens are there in the number 83?

   Formula:Place Value

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

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9. 9.

   There are 3 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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10. 10.

    32 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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11. 11.

    Subtract 32 from 39.

    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.

    Add 69 and 35.

    Formula:Addition

    $\text{sum} = a + b$

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14. 14.

    How many tens are there in the number 75?

    Formula:Place Value

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

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15. 15.

    Add 15 + 20 + 4.

    Formula:Addition of Three Numbers

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

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16. 16.

    Subtract 14 from 36.

    Formula:Subtraction

    $\text{difference} = a - b$

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17. 17.

    Add 11 + 14 + 18.

    Formula:Addition of Three Numbers

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

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18. 18.

    Add 69 and 38.

    Formula:Addition

    $\text{sum} = a + b$

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19. 19.

    Fill in the missing number: 11 + ___ = 19.

    Formula:Missing Addend

    $b = \text{total} - a$

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20. 20.

    Add 4 + 11 + 14.

    Formula:Addition of Three Numbers

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

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