Brazil · Ano 3 · Practice Sheet 2

1. 1.

   Add 13 + 11 + 17.

   Formula:Addition of Three Numbers

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

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2. 2.

   How many tens are there in the number 17?

   Formula:Place Value

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

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3. 3.

   Continue the pattern by counting in 3s: 0, 3, ___

   Formula:Skip Counting

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

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4. 4.

   Add 20 + 9 + 20.

   Formula:Addition of Three Numbers

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

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5. 5.

   Add 62 and 31.

   Formula:Addition

   $\text{sum} = a + b$

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6. 6.

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

   Formula:Skip Counting

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

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7. 7.

   What is double 10?

   Formula:Doubling

   $d = 2 \times n$

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8. 8.

   18 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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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.

    What is half of 10?

    Formula:Halving

    $h = n \div 2$

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11. 11.

    How many tens are there in the number 26?

    Formula:Place Value

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

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12. 12.

    There are 2 bags with 7 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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13. 13.

    36 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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14. 14.

    Fill in the missing number: 15 + ___ = 25.

    Formula:Missing Addend

    $b = \text{total} - a$

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15. 15.

    Subtract 25 from 49.

    Formula:Subtraction

    $\text{difference} = a - b$

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16. 16.

    What is double 20?

    Formula:Doubling

    $d = 2 \times n$

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17. 17.

    What is 10 × 10?

    Formula:Multiplication (Times Tables)

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

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18. 18.

    Add 16 + 8 + 20.

    Formula:Addition of Three Numbers

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

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19. 19.

    Subtract 13 from 74.

    Formula:Subtraction

    $\text{difference} = a - b$

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20. 20.

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

    Formula:Skip Counting

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

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