Ecuador · Grado 2 · Practice Sheet 38

1. 1.

   Add 17 + 15 + 5.

   Formula:Addition of Three Numbers

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

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2. 2.

   What is 18 − 13?

   Formula:Subtraction

   $\text{difference} = a - b$

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3. 3.

   What is 6 + 8?

   Formula:Addition

   $\text{sum} = a + b$

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4. 4.

   Add 6 + 3 + 15.

   Formula:Addition of Three Numbers

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

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5. 5.

   What is half of 40?

   Formula:Halving

   $h = n \div 2$

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6. 6.

   What is 3 + 6?

   Formula:Addition

   $\text{sum} = a + b$

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7. 7.

   What is 2 × 9?

   Formula:Multiplication (Times Tables)

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

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8. 8.

   Add 68 and 29.

   Formula:Addition

   $\text{sum} = a + b$

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9. 9.

   What is double 5?

   Formula:Doubling

   $d = 2 \times n$

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10. 10.

    What is half of 36?

    Formula:Halving

    $h = n \div 2$

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11. 11.

    Subtract 38 from 46.

    Formula:Subtraction

    $\text{difference} = a - b$

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12. 12.

    Fill in the missing number: 4 + ___ = 15.

    Formula:Missing Addend

    $b = \text{total} - a$

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13. 13.

    How many tens are there in the number 98?

    Formula:Place Value

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

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14. 14.

    Subtract 15 from 56.

    Formula:Subtraction

    $\text{difference} = a - b$

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15. 15.

    You have $6 and $8. How much money do you have altogether?

    Formula:Adding Money

    $\text{total} = a + b$

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16. 16.

    Continue the pattern by counting in 5s: 20, 25, ___

    Formula:Skip Counting

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

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17. 17.

    What is double 3?

    Formula:Doubling

    $d = 2 \times n$

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18. 18.

    How many tens are there in the number 87?

    Formula:Place Value

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

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19. 19.

    You have $2 and $2. How much money do you have altogether?

    Formula:Adding Money

    $\text{total} = a + b$

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20. 20.

    Add 87 and 53.

    Formula:Addition

    $\text{sum} = a + b$

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