Mongolia · Grade 2 · Practice Sheet 48

1. 1.

   What is half of 20?

   Formula:Halving

   $h = n \div 2$

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2. 2.

   What is double 19?

   Formula:Doubling

   $d = 2 \times n$

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3. 3.

   Subtract 7 from 45.

   Formula:Subtraction

   $\text{difference} = a - b$

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4. 4.

   Fill in the missing number: 14 + ___ = 21.

   Formula:Missing Addend

   $b = \text{total} - a$

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5. 5.

   What is 9 − 4?

   Formula:Subtraction

   $\text{difference} = a - b$

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6. 6.

   You have ₮6 and ₮3. How much money do you have altogether?

   Formula:Adding Money

   $\text{total} = a + b$

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7. 7.

   Add 10 + 19 + 16.

   Formula:Addition of Three Numbers

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

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8. 8.

   Subtract 35 from 81.

   Formula:Subtraction

   $\text{difference} = a - b$

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9. 9.

   There are 3 bags with 5 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: 8 + ___ = 22.

    Formula:Missing Addend

    $b = \text{total} - a$

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11. 11.

    Subtract 14 from 49.

    Formula:Subtraction

    $\text{difference} = a - b$

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12. 12.

    What is double 13?

    Formula:Doubling

    $d = 2 \times n$

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13. 13.

    There are 5 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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14. 14.

    Subtract 50 from 90.

    Formula:Subtraction

    $\text{difference} = a - b$

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15. 15.

    What is 6 + 1?

    Formula:Addition

    $\text{sum} = a + b$

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16. 16.

    Subtract 16 from 93.

    Formula:Subtraction

    $\text{difference} = a - b$

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17. 17.

    What is 5 + 9?

    Formula:Addition

    $\text{sum} = a + b$

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18. 18.

    What is 8 − 6?

    Formula:Subtraction

    $\text{difference} = a - b$

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19. 19.

    What is 2 × 3?

    Formula:Multiplication (Times Tables)

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

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20. 20.

    Subtract 43 from 79.

    Formula:Subtraction

    $\text{difference} = a - b$

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