Taiwan · Grade 2 · Practice Sheet 1

1. 1.

   What is double 13?

   Formula:Doubling

   $d = 2 \times n$

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2. 2.

   Subtract 22 from 88.

   Formula:Subtraction

   $\text{difference} = a - b$

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3. 3.

   What is double 18?

   Formula:Doubling

   $d = 2 \times n$

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4. 4.

   Subtract 54 from 71.

   Formula:Subtraction

   $\text{difference} = a - b$

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5. 5.

   What is half of 4?

   Formula:Halving

   $h = n \div 2$

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6. 6.

   Add 79 and 24.

   Formula:Addition

   $\text{sum} = a + b$

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7. 7.

   What is half of 36?

   Formula:Halving

   $h = n \div 2$

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8. 8.

   What is 15 − 14?

   Formula:Subtraction

   $\text{difference} = a - b$

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9. 9.

   How many tens are there in the number 27?

   Formula:Place Value

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

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10. 10.

    What is 2 + 8?

    Formula:Addition

    $\text{sum} = a + b$

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11. 11.

    Fill in the missing number: 4 + ___ = 7.

    Formula:Missing Addend

    $b = \text{total} - a$

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12. 12.

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

    Formula:Skip Counting

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

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13. 13.

    What is 7 + 5?

    Formula:Addition

    $\text{sum} = a + b$

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14. 14.

    How many tens are there in the number 98?

    Formula:Place Value

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

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15. 15.

    There are 2 bags with 2 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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16. 16.

    What is half of 24?

    Formula:Halving

    $h = n \div 2$

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17. 17.

    What is 2 + 9?

    Formula:Addition

    $\text{sum} = a + b$

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18. 18.

    How many tens are there in the number 92?

    Formula:Place Value

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

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19. 19.

    What is 3 + 9?

    Formula:Addition

    $\text{sum} = a + b$

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20. 20.

    Continue the pattern by counting in 3s: 9, 12, ___

    Formula:Skip Counting

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

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