Taiwan · Grade 2 · Practice Sheet 11

1. 1.

   How many tens are there in the number 25?

   Formula:Place Value

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

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2. 2.

   What is 9 − 8?

   Formula:Subtraction

   $\text{difference} = a - b$

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3. 3.

   Fill in the missing number: 13 + ___ = 21.

   Formula:Missing Addend

   $b = \text{total} - a$

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4. 4.

   What is double 24?

   Formula:Doubling

   $d = 2 \times n$

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5. 5.

   Continue the pattern by counting in 5s: 5, 10, ___

   Formula:Skip Counting

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

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6. 6.

   Add 48 and 34.

   Formula:Addition

   $\text{sum} = a + b$

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7. 7.

   Fill in the missing number: 14 + ___ = 29.

   Formula:Missing Addend

   $b = \text{total} - a$

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8. 8.

   What is double 4?

   Formula:Doubling

   $d = 2 \times n$

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9. 9.

   Fill in the missing number: 2 + ___ = 6.

   Formula:Missing Addend

   $b = \text{total} - a$

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10. 10.

    You have NT$ 1 and NT$ 7. How much money do you have altogether?

    Formula:Adding Money

    $\text{total} = a + b$

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11. 11.

    Subtract 25 from 55.

    Formula:Subtraction

    $\text{difference} = a - b$

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12. 12.

    How many tens are there in the number 70?

    Formula:Place Value

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

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13. 13.

    Subtract 6 from 57.

    Formula:Subtraction

    $\text{difference} = a - b$

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14. 14.

    How many tens are there in the number 28?

    Formula:Place Value

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

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15. 15.

    Add 2 + 2 + 17.

    Formula:Addition of Three Numbers

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

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16. 16.

    Fill in the missing number: 3 + ___ = 12.

    Formula:Missing Addend

    $b = \text{total} - a$

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17. 17.

    What is 8 × 4?

    Formula:Multiplication (Times Tables)

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

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18. 18.

    How many tens are there in the number 94?

    Formula:Place Value

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

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19. 19.

    Continue the pattern by counting in 5s: 15, 20, ___

    Formula:Skip Counting

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

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20. 20.

    What is double 17?

    Formula:Doubling

    $d = 2 \times n$

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