Portugal · Ano 2 · Practice Sheet 14

1. 1.

   How many tens are there in the number 89?

   Formula:Place Value

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

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2. 2.

   What is half of 22?

   Formula:Halving

   $h = n \div 2$

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3. 3.

   What is 7 × 9?

   Formula:Multiplication (Times Tables)

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

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4. 4.

   How many tens are there in the number 54?

   Formula:Place Value

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

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5. 5.

   Continue the pattern by counting in 5s: 20, 25, ___

   Formula:Skip Counting

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

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6. 6.

   Subtract 39 from 95.

   Formula:Subtraction

   $\text{difference} = a - b$

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7. 7.

   Add 20 + 17 + 7.

   Formula:Addition of Three Numbers

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

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8. 8.

   What is double 10?

   Formula:Doubling

   $d = 2 \times n$

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9. 9.

   You have €7 and €5. How much money do you have altogether?

   Formula:Adding Money

   $\text{total} = a + b$

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10. 10.

    What is double 15?

    Formula:Doubling

    $d = 2 \times n$

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11. 11.

    How many tens are there in the number 28?

    Formula:Place Value

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

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12. 12.

    What is 5 + 7?

    Formula:Addition

    $\text{sum} = a + b$

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13. 13.

    How many tens are there in the number 92?

    Formula:Place Value

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

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14. 14.

    What is 8 + 2?

    Formula:Addition

    $\text{sum} = a + b$

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15. 15.

    Subtract 81 from 93.

    Formula:Subtraction

    $\text{difference} = a - b$

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16. 16.

    Add 3 + 20 + 13.

    Formula:Addition of Three Numbers

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

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17. 17.

    What is 3 × 6?

    Formula:Multiplication (Times Tables)

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

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18. 18.

    Add 17 + 14 + 11.

    Formula:Addition of Three Numbers

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

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19. 19.

    Fill in the missing number: 14 + ___ = 23.

    Formula:Missing Addend

    $b = \text{total} - a$

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20. 20.

    Subtract 20 from 43.

    Formula:Subtraction

    $\text{difference} = a - b$

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