Ecuador · Grado 2 · Practice Sheet 45

1. 1.

   What is half of 8?

   Formula:Halving

   $h = n \div 2$

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2. 2.

   Fill in the missing number: 7 + ___ = 19.

   Formula:Missing Addend

   $b = \text{total} - a$

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3. 3.

   What is half of 38?

   Formula:Halving

   $h = n \div 2$

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4. 4.

   What is 5 + 3?

   Formula:Addition

   $\text{sum} = a + b$

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5. 5.

   Add 15 + 5 + 19.

   Formula:Addition of Three Numbers

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

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6. 6.

   What is half of 10?

   Formula:Halving

   $h = n \div 2$

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7. 7.

   Add 35 and 15.

   Formula:Addition

   $\text{sum} = a + b$

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8. 8.

   What is 5 + 5?

   Formula:Addition

   $\text{sum} = a + b$

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9. 9.

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

   Formula:Skip Counting

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

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10. 10.

    What is half of 30?

    Formula:Halving

    $h = n \div 2$

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11. 11.

    What is 16 − 6?

    Formula:Subtraction

    $\text{difference} = a - b$

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12. 12.

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

    Formula:Skip Counting

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

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13. 13.

    What is half of 28?

    Formula:Halving

    $h = n \div 2$

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14. 14.

    What is 7 + 9?

    Formula:Addition

    $\text{sum} = a + b$

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15. 15.

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

    Formula:Skip Counting

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

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16. 16.

    What is 13 − 6?

    Formula:Subtraction

    $\text{difference} = a - b$

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17. 17.

    Fill in the missing number: 2 + ___ = 10.

    Formula:Missing Addend

    $b = \text{total} - a$

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18. 18.

    There are 5 bags with 5 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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19. 19.

    You have $8 and $2. How much money do you have altogether?

    Formula:Adding Money

    $\text{total} = a + b$

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20. 20.

    What is 5 + 7?

    Formula:Addition

    $\text{sum} = a + b$

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