South Korea · Grade 2 · Practice Sheet 10

1. 1.

   What is 7 + 2?

   Formula:Addition

   $\text{sum} = a + b$

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2. 2.

   What is 8 × 5?

   Formula:Multiplication (Times Tables)

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

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3. 3.

   Subtract 21 from 36.

   Formula:Subtraction

   $\text{difference} = a - b$

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4. 4.

   Add 55 and 47.

   Formula:Addition

   $\text{sum} = a + b$

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5. 5.

   What is 18 − 13?

   Formula:Subtraction

   $\text{difference} = a - b$

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6. 6.

   You have ₩3 and ₩2. How much money do you have altogether?

   Formula:Adding Money

   $\text{total} = a + b$

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7. 7.

   What is 1 + 8?

   Formula:Addition

   $\text{sum} = a + b$

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8. 8.

   What is double 11?

   Formula:Doubling

   $d = 2 \times n$

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9. 9.

   Add 2 + 10 + 19.

   Formula:Addition of Three Numbers

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

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10. 10.

    What is 17 − 4?

    Formula:Subtraction

    $\text{difference} = a - b$

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11. 11.

    What is double 2?

    Formula:Doubling

    $d = 2 \times n$

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12. 12.

    What is 3 × 7?

    Formula:Multiplication (Times Tables)

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

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13. 13.

    Subtract 21 from 45.

    Formula:Subtraction

    $\text{difference} = a - b$

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14. 14.

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

    Formula:Skip Counting

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

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15. 15.

    What is 10 × 6?

    Formula:Multiplication (Times Tables)

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

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16. 16.

    There are 4 bags with 4 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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17. 17.

    You have ₩2 and ₩3. How much money do you have altogether?

    Formula:Adding Money

    $\text{total} = a + b$

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18. 18.

    There are 2 bags with 4 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.

    What is 2 × 4?

    Formula:Multiplication (Times Tables)

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

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20. 20.

    Fill in the missing number: 12 + ___ = 19.

    Formula:Missing Addend

    $b = \text{total} - a$

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