Brazil · Ano 3 · Practice Sheet 38

1. 1.

   Subtract 28 from 43.

   Formula:Subtraction

   $\text{difference} = a - b$

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2. 2.

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

   Formula:Skip Counting

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

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3. 3.

   How many tens are there in the number 73?

   Formula:Place Value

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

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4. 4.

   Add 18 + 4 + 7.

   Formula:Addition of Three Numbers

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

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5. 5.

   What is half of 18?

   Formula:Halving

   $h = n \div 2$

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6. 6.

   Add 37 and 7.

   Formula:Addition

   $\text{sum} = a + b$

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7. 7.

   Fill in the missing number: 9 + ___ = 16.

   Formula:Missing Addend

   $b = \text{total} - a$

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8. 8.

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

   Formula:Adding Money

   $\text{total} = a + b$

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9. 9.

   What is double 9?

   Formula:Doubling

   $d = 2 \times n$

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10. 10.

    What is half of 30?

    Formula:Halving

    $h = n \div 2$

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11. 11.

    There are 4 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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12. 12.

    How many tens are there in the number 75?

    Formula:Place Value

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

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13. 13.

    Add 7 + 10 + 10.

    Formula:Addition of Three Numbers

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

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14. 14.

    Fill in the missing number: 11 + ___ = 26.

    Formula:Missing Addend

    $b = \text{total} - a$

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15. 15.

    What is double 6?

    Formula:Doubling

    $d = 2 \times n$

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16. 16.

    What is half of 48?

    Formula:Halving

    $h = n \div 2$

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17. 17.

    16 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.

    How many tens are there in the number 47?

    Formula:Place Value

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

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19. 19.

    What is half of 40?

    Formula:Halving

    $h = n \div 2$

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20. 20.

    Subtract 36 from 47.

    Formula:Subtraction

    $\text{difference} = a - b$

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