South Korea · Grade 2 · Practice Sheet 3

1. 1.

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

   Formula:Skip Counting

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

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2. 2.

   How many tens are there in the number 86?

   Formula:Place Value

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

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3. 3.

   Add 24 and 5.

   Formula:Addition

   $\text{sum} = a + b$

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4. 4.

   What is 9 × 2?

   Formula:Multiplication (Times Tables)

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

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5. 5.

   What is 18 − 5?

   Formula:Subtraction

   $\text{difference} = a - b$

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6. 6.

   Subtract 44 from 83.

   Formula:Subtraction

   $\text{difference} = a - b$

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7. 7.

   Fill in the missing number: 6 + ___ = 15.

   Formula:Missing Addend

   $b = \text{total} - a$

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8. 8.

   What is double 19?

   Formula:Doubling

   $d = 2 \times n$

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9. 9.

   Fill in the missing number: 13 + ___ = 22.

   Formula:Missing Addend

   $b = \text{total} - a$

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10. 10.

    What is 4 × 4?

    Formula:Multiplication (Times Tables)

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

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11. 11.

    Add 14 and 56.

    Formula:Addition

    $\text{sum} = a + b$

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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.

    Fill in the missing number: 12 + ___ = 18.

    Formula:Missing Addend

    $b = \text{total} - a$

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14. 14.

    Subtract 48 from 65.

    Formula:Subtraction

    $\text{difference} = a - b$

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15. 15.

    What is 6 + 1?

    Formula:Addition

    $\text{sum} = a + b$

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16. 16.

    Add 62 and 50.

    Formula:Addition

    $\text{sum} = a + b$

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17. 17.

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

    Formula:Adding Money

    $\text{total} = a + b$

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18. 18.

    What is 9 × 10?

    Formula:Multiplication (Times Tables)

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

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19. 19.

    Continue the pattern by counting in 10s: 30, 40, ___

    Formula:Skip Counting

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

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20. 20.

    What is half of 8?

    Formula:Halving

    $h = n \div 2$

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