Taiwan · Grade 2 · Practice Sheet 14

1. 1.

   What is 7 − 3?

   Formula:Subtraction

   $\text{difference} = a - b$

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2. 2.

   What is 1 + 4?

   Formula:Addition

   $\text{sum} = a + b$

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3. 3.

   Add 17 + 5 + 12.

   Formula:Addition of Three Numbers

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

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4. 4.

   You have NT$ 8 and NT$ 4. How much money do you have altogether?

   Formula:Adding Money

   $\text{total} = a + b$

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5. 5.

   How many tens are there in the number 15?

   Formula:Place Value

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

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6. 6.

   What is double 25?

   Formula:Doubling

   $d = 2 \times n$

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7. 7.

   Add 15 and 12.

   Formula:Addition

   $\text{sum} = a + b$

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8. 8.

   What is 7 − 3?

   Formula:Subtraction

   $\text{difference} = a - b$

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9. 9.

   Subtract 34 from 92.

   Formula:Subtraction

   $\text{difference} = a - b$

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10. 10.

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

    Formula:Adding Money

    $\text{total} = a + b$

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11. 11.

    Fill in the missing number: 6 + ___ = 13.

    Formula:Missing Addend

    $b = \text{total} - a$

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12. 12.

    What is double 21?

    Formula:Doubling

    $d = 2 \times n$

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13. 13.

    What is half of 4?

    Formula:Halving

    $h = n \div 2$

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14. 14.

    Continue the pattern by counting in 10s: 20, 30, ___

    Formula:Skip Counting

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

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15. 15.

    What is half of 20?

    Formula:Halving

    $h = n \div 2$

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16. 16.

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

    Formula:Skip Counting

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

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17. 17.

    What is 9 + 4?

    Formula:Addition

    $\text{sum} = a + b$

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18. 18.

    Add 2 + 10 + 8.

    Formula:Addition of Three Numbers

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

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19. 19.

    What is 9 × 9?

    Formula:Multiplication (Times Tables)

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

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20. 20.

    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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