Peru · Grado 3 · Practice Sheet 11

1. 1.

   What is half of 24?

   Formula:Halving

   $h = n \div 2$

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2. 2.

   What is double 7?

   Formula:Doubling

   $d = 2 \times n$

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3. 3.

   What is half of 50?

   Formula:Halving

   $h = n \div 2$

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4. 4.

   Subtract 52 from 90.

   Formula:Subtraction

   $\text{difference} = a - b$

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5. 5.

   Fill in the missing number: 5 + ___ = 19.

   Formula:Missing Addend

   $b = \text{total} - a$

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6. 6.

   What is half of 4?

   Formula:Halving

   $h = n \div 2$

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7. 7.

   Add 61 and 11.

   Formula:Addition

   $\text{sum} = a + b$

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8. 8.

   Continue the pattern by counting in 2s: 8, 10, ___

   Formula:Skip Counting

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

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9. 9.

   How many tens are there in the number 43?

   Formula:Place Value

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

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10. 10.

    Add 14 + 6 + 7.

    Formula:Addition of Three Numbers

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

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11. 11.

    What is half of 12?

    Formula:Halving

    $h = n \div 2$

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12. 12.

    Add 8 + 7 + 14.

    Formula:Addition of Three Numbers

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

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13. 13.

    Continue the pattern by counting in 2s: 6, 8, ___

    Formula:Skip Counting

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

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14. 14.

    Add 4 + 18 + 13.

    Formula:Addition of Three Numbers

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

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15. 15.

    How many tens are there in the number 25?

    Formula:Place Value

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

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16. 16.

    Add 52 and 53.

    Formula:Addition

    $\text{sum} = a + b$

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17. 17.

    Subtract 17 from 35.

    Formula:Subtraction

    $\text{difference} = a - b$

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18. 18.

    Add 15 + 13 + 12.

    Formula:Addition of Three Numbers

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

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19. 19.

    Continue the pattern by counting in 10s: 20, 30, ___

    Formula:Skip Counting

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

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20. 20.

    How many tens are there in the number 52?

    Formula:Place Value

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

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