Mexico · Grado 3 · Practice Sheet 22

1. 1.

   There are 6 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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2. 2.

   Subtract 12 from 30.

   Formula:Subtraction

   $\text{difference} = a - b$

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3. 3.

   Fill in the missing number: 8 + ___ = 15.

   Formula:Missing Addend

   $b = \text{total} - a$

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4. 4.

   Continue the pattern by counting in 3s: 3, 6, ___

   Formula:Skip Counting

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

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5. 5.

   Add 87 and 27.

   Formula:Addition

   $\text{sum} = a + b$

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6. 6.

   How many tens are there in the number 12?

   Formula:Place Value

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

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7. 7.

   What is double 22?

   Formula:Doubling

   $d = 2 \times n$

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8. 8.

   What is half of 12?

   Formula:Halving

   $h = n \div 2$

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9. 9.

   What is double 25?

   Formula:Doubling

   $d = 2 \times n$

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10. 10.

    What is 10 × 4?

    Formula:Multiplication (Times Tables)

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

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11. 11.

    How many tens are there in the number 22?

    Formula:Place Value

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

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12. 12.

    What is half of 48?

    Formula:Halving

    $h = n \div 2$

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13. 13.

    There are 6 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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14. 14.

    12 sweets are shared equally among 3 children. How many does each child get?

    Formula:Division (Equal Sharing)

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

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15. 15.

    Subtract 63 from 74.

    Formula:Subtraction

    $\text{difference} = a - b$

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16. 16.

    Continue the pattern by counting in 5s: 0, 5, ___

    Formula:Skip Counting

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

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17. 17.

    Add 13 and 44.

    Formula:Addition

    $\text{sum} = a + b$

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18. 18.

    Fill in the missing number: 12 + ___ = 16.

    Formula:Missing Addend

    $b = \text{total} - a$

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19. 19.

    Subtract 17 from 32.

    Formula:Subtraction

    $\text{difference} = a - b$

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20. 20.

    Add 8 + 12 + 8.

    Formula:Addition of Three Numbers

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

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