China · Grade 2 · Practice Sheet 20

1. 1.

   Continue the pattern by counting in 2s: 0, 2, ___

   Formula:Skip Counting

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

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2. 2.

   What is 8 + 8?

   Formula:Addition

   $\text{sum} = a + b$

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3. 3.

   What is 5 − 3?

   Formula:Subtraction

   $\text{difference} = a - b$

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4. 4.

   Subtract 24 from 31.

   Formula:Subtraction

   $\text{difference} = a - b$

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5. 5.

   Fill in the missing number: 9 + ___ = 11.

   Formula:Missing Addend

   $b = \text{total} - a$

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6. 6.

   Add 48 and 41.

   Formula:Addition

   $\text{sum} = a + b$

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7. 7.

   Fill in the missing number: 10 + ___ = 25.

   Formula:Missing Addend

   $b = \text{total} - a$

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8. 8.

   How many tens are there in the number 37?

   Formula:Place Value

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

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9. 9.

   Add 16 + 5 + 12.

   Formula:Addition of Three Numbers

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

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10. 10.

    Continue the pattern by counting in 2s: 6, 8, ___

    Formula:Skip Counting

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

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11. 11.

    How many tens are there in the number 77?

    Formula:Place Value

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

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12. 12.

    There are 5 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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13. 13.

    What is 10 − 1?

    Formula:Subtraction

    $\text{difference} = a - b$

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14. 14.

    Add 19 + 12 + 19.

    Formula:Addition of Three Numbers

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

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15. 15.

    Add 69 and 35.

    Formula:Addition

    $\text{sum} = a + b$

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16. 16.

    How many tens are there in the number 64?

    Formula:Place Value

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

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17. 17.

    Add 4 + 19 + 3.

    Formula:Addition of Three Numbers

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

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18. 18.

    What is half of 4?

    Formula:Halving

    $h = n \div 2$

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19. 19.

    Continue the pattern by counting in 5s: 10, 15, ___

    Formula:Skip Counting

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

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20. 20.

    Fill in the missing number: 12 + ___ = 21.

    Formula:Missing Addend

    $b = \text{total} - a$

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