Vietnam · Grade 2 · Practice Sheet 24

1. 1.

   Fill in the missing number: 15 + ___ = 21.

   Formula:Missing Addend

   $b = \text{total} - a$

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2. 2.

   What is 8 − 1?

   Formula:Subtraction

   $\text{difference} = a - b$

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3. 3.

   What is 2 + 1?

   Formula:Addition

   $\text{sum} = a + b$

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4. 4.

   What is half of 4?

   Formula:Halving

   $h = n \div 2$

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5. 5.

   Fill in the missing number: 8 + ___ = 20.

   Formula:Missing Addend

   $b = \text{total} - a$

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6. 6.

   What is half of 40?

   Formula:Halving

   $h = n \div 2$

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7. 7.

   There are 4 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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8. 8.

   Subtract 12 from 94.

   Formula:Subtraction

   $\text{difference} = a - b$

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9. 9.

   There are 4 bags with 8 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.

    Subtract 5 from 50.

    Formula:Subtraction

    $\text{difference} = a - b$

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11. 11.

    What is half of 34?

    Formula:Halving

    $h = n \div 2$

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12. 12.

    Add 12 + 13 + 13.

    Formula:Addition of Three Numbers

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

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13. 13.

    There are 6 bags with 7 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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14. 14.

    Fill in the missing number: 8 + ___ = 13.

    Formula:Missing Addend

    $b = \text{total} - a$

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15. 15.

    Add 15 + 4 + 16.

    Formula:Addition of Three Numbers

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

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16. 16.

    What is 6 + 6?

    Formula:Addition

    $\text{sum} = a + b$

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17. 17.

    Add 16 and 31.

    Formula:Addition

    $\text{sum} = a + b$

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18. 18.

    How many tens are there in the number 45?

    Formula:Place Value

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

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19. 19.

    Subtract 41 from 74.

    Formula:Subtraction

    $\text{difference} = a - b$

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20. 20.

    How many tens are there in the number 85?

    Formula:Place Value

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

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