Portugal · Ano 2 · Practice Sheet 15

1. 1.

   Add 64 and 36.

   Formula:Addition

   $\text{sum} = a + b$

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2. 2.

   What is 3 × 7?

   Formula:Multiplication (Times Tables)

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

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3. 3.

   Add 18 + 10 + 10.

   Formula:Addition of Three Numbers

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

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4. 4.

   What is 15 − 6?

   Formula:Subtraction

   $\text{difference} = a - b$

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5. 5.

   There are 5 bags with 6 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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6. 6.

   Add 12 + 2 + 2.

   Formula:Addition of Three Numbers

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

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7. 7.

   Add 42 and 22.

   Formula:Addition

   $\text{sum} = a + b$

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8. 8.

   Add 3 + 6 + 3.

   Formula:Addition of Three Numbers

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

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9. 9.

   Add 51 and 24.

   Formula:Addition

   $\text{sum} = a + b$

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10. 10.

    What is double 25?

    Formula:Doubling

    $d = 2 \times n$

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11. 11.

    How many tens are there in the number 13?

    Formula:Place Value

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

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12. 12.

    What is 10 × 9?

    Formula:Multiplication (Times Tables)

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

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13. 13.

    How many tens are there in the number 30?

    Formula:Place Value

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

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14. 14.

    What is double 20?

    Formula:Doubling

    $d = 2 \times n$

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15. 15.

    What is 1 + 6?

    Formula:Addition

    $\text{sum} = a + b$

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16. 16.

    Subtract 60 from 93.

    Formula:Subtraction

    $\text{difference} = a - b$

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17. 17.

    What is 2 + 9?

    Formula:Addition

    $\text{sum} = a + b$

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18. 18.

    Subtract 68 from 87.

    Formula:Subtraction

    $\text{difference} = a - b$

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19. 19.

    What is double 15?

    Formula:Doubling

    $d = 2 \times n$

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20. 20.

    What is 9 × 7?

    Formula:Multiplication (Times Tables)

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

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