Ecuador · Grado 2 · Practice Sheet 25

1. 1.

   What is 17 − 2?

   Formula:Subtraction

   $\text{difference} = a - b$

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2. 2.

   Fill in the missing number: 13 + ___ = 19.

   Formula:Missing Addend

   $b = \text{total} - a$

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3. 3.

   Add 13 + 8 + 7.

   Formula:Addition of Three Numbers

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

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4. 4.

   Continue the pattern by counting in 3s: 12, 15, ___

   Formula:Skip Counting

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

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5. 5.

   What is 8 × 8?

   Formula:Multiplication (Times Tables)

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

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6. 6.

   Subtract 50 from 97.

   Formula:Subtraction

   $\text{difference} = a - b$

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7. 7.

   What is double 14?

   Formula:Doubling

   $d = 2 \times n$

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8. 8.

   Add 14 + 16 + 4.

   Formula:Addition of Three Numbers

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

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9. 9.

   Continue the pattern by counting in 5s: 0, 5, ___

   Formula:Skip Counting

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

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10. 10.

    Fill in the missing number: 5 + ___ = 8.

    Formula:Missing Addend

    $b = \text{total} - a$

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11. 11.

    What is 2 + 7?

    Formula:Addition

    $\text{sum} = a + b$

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12. 12.

    Subtract 28 from 83.

    Formula:Subtraction

    $\text{difference} = a - b$

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13. 13.

    Add 50 and 18.

    Formula:Addition

    $\text{sum} = a + b$

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14. 14.

    Subtract 34 from 47.

    Formula:Subtraction

    $\text{difference} = a - b$

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15. 15.

    What is 1 + 8?

    Formula:Addition

    $\text{sum} = a + b$

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16. 16.

    What is half of 10?

    Formula:Halving

    $h = n \div 2$

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17. 17.

    You have $1 and $9. How much money do you have altogether?

    Formula:Adding Money

    $\text{total} = a + b$

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18. 18.

    Add 7 + 6 + 7.

    Formula:Addition of Three Numbers

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

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19. 19.

    What is 7 − 3?

    Formula:Subtraction

    $\text{difference} = a - b$

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20. 20.

    What is half of 18?

    Formula:Halving

    $h = n \div 2$

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