Vietnam · Grade 2 · Practice Sheet 25

1. 1.

   Add 5 + 18 + 7.

   Formula:Addition of Three Numbers

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

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2. 2.

   How many tens are there in the number 59?

   Formula:Place Value

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

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3. 3.

   Add 48 and 49.

   Formula:Addition

   $\text{sum} = a + b$

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4. 4.

   What is double 2?

   Formula:Doubling

   $d = 2 \times n$

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5. 5.

   Subtract 11 from 41.

   Formula:Subtraction

   $\text{difference} = a - b$

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6. 6.

   Continue the pattern by counting in 3s: 12, 15, ___

   Formula:Skip Counting

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

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7. 7.

   What is 18 − 2?

   Formula:Subtraction

   $\text{difference} = a - b$

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8. 8.

   Subtract 14 from 73.

   Formula:Subtraction

   $\text{difference} = a - b$

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9. 9.

   There are 6 bags with 6 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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10. 10.

    Fill in the missing number: 7 + ___ = 13.

    Formula:Missing Addend

    $b = \text{total} - a$

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11. 11.

    Add 16 and 26.

    Formula:Addition

    $\text{sum} = a + b$

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12. 12.

    What is half of 16?

    Formula:Halving

    $h = n \div 2$

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13. 13.

    Add 8 + 20 + 15.

    Formula:Addition of Three Numbers

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

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14. 14.

    What is 8 − 6?

    Formula:Subtraction

    $\text{difference} = a - b$

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15. 15.

    Add 11 + 2 + 18.

    Formula:Addition of Three Numbers

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

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16. 16.

    What is 18 − 2?

    Formula:Subtraction

    $\text{difference} = a - b$

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17. 17.

    What is 6 × 4?

    Formula:Multiplication (Times Tables)

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

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18. 18.

    What is half of 18?

    Formula:Halving

    $h = n \div 2$

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19. 19.

    What is 2 × 7?

    Formula:Multiplication (Times Tables)

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

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20. 20.

    What is 4 + 1?

    Formula:Addition

    $\text{sum} = a + b$

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