Brazil · Ano 2 · Practice Sheet 30

1. 1.

   What is double 12?

   Formula:Doubling

   $d = 2 \times n$

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2. 2.

   What is 7 + 3?

   Formula:Addition

   $\text{sum} = a + b$

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3. 3.

   Subtract 47 from 97.

   Formula:Subtraction

   $\text{difference} = a - b$

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4. 4.

   Add 11 and 11.

   Formula:Addition

   $\text{sum} = a + b$

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5. 5.

   Fill in the missing number: 11 + ___ = 20.

   Formula:Missing Addend

   $b = \text{total} - a$

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6. 6.

   What is 2 + 7?

   Formula:Addition

   $\text{sum} = a + b$

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7. 7.

   Subtract 26 from 74.

   Formula:Subtraction

   $\text{difference} = a - b$

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8. 8.

   Add 20 and 21.

   Formula:Addition

   $\text{sum} = a + b$

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9. 9.

   Subtract 45 from 91.

   Formula:Subtraction

   $\text{difference} = a - b$

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10. 10.

    What is 7 − 6?

    Formula:Subtraction

    $\text{difference} = a - b$

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11. 11.

    What is half of 8?

    Formula:Halving

    $h = n \div 2$

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12. 12.

    What is 6 × 3?

    Formula:Multiplication (Times Tables)

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

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13. 13.

    What is half of 28?

    Formula:Halving

    $h = n \div 2$

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14. 14.

    Add 7 + 14 + 11.

    Formula:Addition of Three Numbers

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

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15. 15.

    Continue the pattern by counting in 2s: 4, 6, ___

    Formula:Skip Counting

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

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16. 16.

    What is double 18?

    Formula:Doubling

    $d = 2 \times n$

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17. 17.

    What is half of 28?

    Formula:Halving

    $h = n \div 2$

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18. 18.

    Add 19 + 6 + 8.

    Formula:Addition of Three Numbers

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

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19. 19.

    Fill in the missing number: 12 + ___ = 15.

    Formula:Missing Addend

    $b = \text{total} - a$

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20. 20.

    What is double 17?

    Formula:Doubling

    $d = 2 \times n$

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