Portugal · Ano 2 · Practice Sheet 42

1. 1.

   Fill in the missing number: 11 + ___ = 17.

   Formula:Missing Addend

   $b = \text{total} - a$

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2. 2.

   What is double 11?

   Formula:Doubling

   $d = 2 \times n$

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3. 3.

   How many tens are there in the number 35?

   Formula:Place Value

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

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4. 4.

   What is 4 + 6?

   Formula:Addition

   $\text{sum} = a + b$

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5. 5.

   How many tens are there in the number 42?

   Formula:Place Value

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

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6. 6.

   What is 2 × 4?

   Formula:Multiplication (Times Tables)

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

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7. 7.

   What is 7 + 8?

   Formula:Addition

   $\text{sum} = a + b$

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8. 8.

   What is 9 − 4?

   Formula:Subtraction

   $\text{difference} = a - b$

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9. 9.

   Add 11 + 11 + 17.

   Formula:Addition of Three Numbers

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

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10. 10.

    Subtract 34 from 46.

    Formula:Subtraction

    $\text{difference} = a - b$

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11. 11.

    Add 13 + 7 + 2.

    Formula:Addition of Three Numbers

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

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12. 12.

    Add 62 and 25.

    Formula:Addition

    $\text{sum} = a + b$

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13. 13.

    What is half of 24?

    Formula:Halving

    $h = n \div 2$

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14. 14.

    What is double 17?

    Formula:Doubling

    $d = 2 \times n$

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15. 15.

    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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16. 16.

    You have €3 and €3. How much money do you have altogether?

    Formula:Adding Money

    $\text{total} = a + b$

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17. 17.

    Add 18 + 6 + 11.

    Formula:Addition of Three Numbers

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

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18. 18.

    What is half of 48?

    Formula:Halving

    $h = n \div 2$

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19. 19.

    Add 2 + 18 + 9.

    Formula:Addition of Three Numbers

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

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20. 20.

    Fill in the missing number: 9 + ___ = 19.

    Formula:Missing Addend

    $b = \text{total} - a$

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