Chile · Grado 2 · Practice Sheet 25

1. 1.

   Add 11 + 10 + 6.

   Formula:Addition of Three Numbers

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

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2. 2.

   What is 11 − 9?

   Formula:Subtraction

   $\text{difference} = a - b$

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3. 3.

   Subtract 41 from 49.

   Formula:Subtraction

   $\text{difference} = a - b$

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4. 4.

   Add 6 + 14 + 19.

   Formula:Addition of Three Numbers

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

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5. 5.

   How many tens are there in the number 88?

   Formula:Place Value

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

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6. 6.

   Fill in the missing number: 10 + ___ = 21.

   Formula:Missing Addend

   $b = \text{total} - a$

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7. 7.

   Add 3 + 2 + 15.

   Formula:Addition of Three Numbers

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

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8. 8.

   What is half of 8?

   Formula:Halving

   $h = n \div 2$

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9. 9.

   What is double 7?

   Formula:Doubling

   $d = 2 \times n$

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10. 10.

    Fill in the missing number: 6 + ___ = 18.

    Formula:Missing Addend

    $b = \text{total} - a$

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11. 11.

    You have $6 and $1. How much money do you have altogether?

    Formula:Adding Money

    $\text{total} = a + b$

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12. 12.

    Fill in the missing number: 5 + ___ = 20.

    Formula:Missing Addend

    $b = \text{total} - a$

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13. 13.

    Subtract 29 from 62.

    Formula:Subtraction

    $\text{difference} = a - b$

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14. 14.

    Add 51 and 11.

    Formula:Addition

    $\text{sum} = a + b$

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15. 15.

    You have $6 and $3. How much money do you have altogether?

    Formula:Adding Money

    $\text{total} = a + b$

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16. 16.

    How many tens are there in the number 84?

    Formula:Place Value

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

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17. 17.

    What is 8 − 5?

    Formula:Subtraction

    $\text{difference} = a - b$

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18. 18.

    How many tens are there in the number 93?

    Formula:Place Value

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

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19. 19.

    Add 7 + 13 + 10.

    Formula:Addition of Three Numbers

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

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20. 20.

    What is 8 × 3?

    Formula:Multiplication (Times Tables)

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

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