Colombia · Grado 3 · Practice Sheet 8

1. 1.

   Add 13 + 3 + 15.

   Formula:Addition of Three Numbers

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

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2. 2.

   24 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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3. 3.

   How many tens are there in the number 53?

   Formula:Place Value

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

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4. 4.

   Subtract 31 from 72.

   Formula:Subtraction

   $\text{difference} = a - b$

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5. 5.

   Fill in the missing number: 12 + ___ = 22.

   Formula:Missing Addend

   $b = \text{total} - a$

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6. 6.

   What is 9 × 5?

   Formula:Multiplication (Times Tables)

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

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7. 7.

   Continue the pattern by counting in 2s: 6, 8, ___

   Formula:Skip Counting

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

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8. 8.

   How many tens are there in the number 74?

   Formula:Place Value

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

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9. 9.

   Subtract 30 from 73.

   Formula:Subtraction

   $\text{difference} = a - b$

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10. 10.

    What is 2 × 2?

    Formula:Multiplication (Times Tables)

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

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11. 11.

    What is double 11?

    Formula:Doubling

    $d = 2 \times n$

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12. 12.

    Subtract 38 from 58.

    Formula:Subtraction

    $\text{difference} = a - b$

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13. 13.

    Fill in the missing number: 13 + ___ = 21.

    Formula:Missing Addend

    $b = \text{total} - a$

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14. 14.

    How many tens are there in the number 99?

    Formula:Place Value

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

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15. 15.

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

    Formula:Skip Counting

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

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16. 16.

    What is 6 × 6?

    Formula:Multiplication (Times Tables)

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

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17. 17.

    How many tens are there in the number 67?

    Formula:Place Value

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

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18. 18.

    Subtract 25 from 36.

    Formula:Subtraction

    $\text{difference} = a - b$

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19. 19.

    Add 2 + 6 + 13.

    Formula:Addition of Three Numbers

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

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20. 20.

    Add 33 and 35.

    Formula:Addition

    $\text{sum} = a + b$

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