Peru · Grado 2 · Practice Sheet 7

1. 1.

   Fill in the missing number: 3 + ___ = 11.

   Formula:Missing Addend

   $b = \text{total} - a$

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2. 2.

   What is half of 8?

   Formula:Halving

   $h = n \div 2$

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3. 3.

   What is double 23?

   Formula:Doubling

   $d = 2 \times n$

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4. 4.

   How many tens are there in the number 83?

   Formula:Place Value

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

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5. 5.

   Fill in the missing number: 5 + ___ = 9.

   Formula:Missing Addend

   $b = \text{total} - a$

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6. 6.

   Continue the pattern by counting in 10s: 30, 40, ___

   Formula:Skip Counting

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

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7. 7.

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

   Formula:Missing Addend

   $b = \text{total} - a$

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8. 8.

   What is half of 50?

   Formula:Halving

   $h = n \div 2$

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9. 9.

   There are 5 bags with 8 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.

    Fill in the missing number: 4 + ___ = 9.

    Formula:Missing Addend

    $b = \text{total} - a$

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11. 11.

    What is 15 − 2?

    Formula:Subtraction

    $\text{difference} = a - b$

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12. 12.

    Add 28 and 38.

    Formula:Addition

    $\text{sum} = a + b$

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13. 13.

    What is 14 − 4?

    Formula:Subtraction

    $\text{difference} = a - b$

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14. 14.

    Subtract 40 from 47.

    Formula:Subtraction

    $\text{difference} = a - b$

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15. 15.

    What is 3 × 5?

    Formula:Multiplication (Times Tables)

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

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16. 16.

    What is double 23?

    Formula:Doubling

    $d = 2 \times n$

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17. 17.

    What is 16 − 14?

    Formula:Subtraction

    $\text{difference} = a - b$

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18. 18.

    Subtract 50 from 95.

    Formula:Subtraction

    $\text{difference} = a - b$

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19. 19.

    Add 43 and 54.

    Formula:Addition

    $\text{sum} = a + b$

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20. 20.

    How many tens are there in the number 75?

    Formula:Place Value

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

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