Portugal · Ano 2 · Practice Sheet 1

1. 1.

   How many tens are there in the number 23?

   Formula:Place Value

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

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2. 2.

   Fill in the missing number: 6 + ___ = 14.

   Formula:Missing Addend

   $b = \text{total} - a$

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3. 3.

   What is 1 + 6?

   Formula:Addition

   $\text{sum} = a + b$

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4. 4.

   Fill in the missing number: 11 + ___ = 19.

   Formula:Missing Addend

   $b = \text{total} - a$

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5. 5.

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

   Formula:Skip Counting

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

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6. 6.

   You have €3 and €1. How much money do you have altogether?

   Formula:Adding Money

   $\text{total} = a + b$

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7. 7.

   What is double 24?

   Formula:Doubling

   $d = 2 \times n$

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8. 8.

   Fill in the missing number: 2 + ___ = 15.

   Formula:Missing Addend

   $b = \text{total} - a$

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9. 9.

   There are 3 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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10. 10.

    What is 9 + 3?

    Formula:Addition

    $\text{sum} = a + b$

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11. 11.

    Add 39 and 35.

    Formula:Addition

    $\text{sum} = a + b$

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12. 12.

    You have €5 and €5. How much money do you have altogether?

    Formula:Adding Money

    $\text{total} = a + b$

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13. 13.

    What is 17 − 4?

    Formula:Subtraction

    $\text{difference} = a - b$

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14. 14.

    Continue the pattern by counting in 3s: 6, 9, ___

    Formula:Skip Counting

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

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15. 15.

    There are 4 bags with 2 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.

    What is half of 34?

    Formula:Halving

    $h = n \div 2$

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17. 17.

    Fill in the missing number: 8 + ___ = 12.

    Formula:Missing Addend

    $b = \text{total} - a$

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18. 18.

    Add 35 and 46.

    Formula:Addition

    $\text{sum} = a + b$

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19. 19.

    Fill in the missing number: 2 + ___ = 11.

    Formula:Missing Addend

    $b = \text{total} - a$

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20. 20.

    You have €6 and €4. How much money do you have altogether?

    Formula:Adding Money

    $\text{total} = a + b$

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