Ecuador · Grado 2 · Practice Sheet 39

1. 1.

   Subtract 26 from 53.

   Formula:Subtraction

   $\text{difference} = a - b$

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2. 2.

   How many tens are there in the number 68?

   Formula:Place Value

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

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3. 3.

   Fill in the missing number: 12 + ___ = 24.

   Formula:Missing Addend

   $b = \text{total} - a$

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4. 4.

   Add 15 + 12 + 10.

   Formula:Addition of Three Numbers

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

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5. 5.

   Fill in the missing number: 9 + ___ = 15.

   Formula:Missing Addend

   $b = \text{total} - a$

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6. 6.

   Add 7 + 9 + 16.

   Formula:Addition of Three Numbers

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

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7. 7.

   What is 9 × 8?

   Formula:Multiplication (Times Tables)

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

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8. 8.

   What is double 21?

   Formula:Doubling

   $d = 2 \times n$

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9. 9.

   What is 12 − 5?

   Formula:Subtraction

   $\text{difference} = a - b$

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10. 10.

    Subtract 30 from 72.

    Formula:Subtraction

    $\text{difference} = a - b$

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11. 11.

    How many tens are there in the number 95?

    Formula:Place Value

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

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12. 12.

    What is half of 30?

    Formula:Halving

    $h = n \div 2$

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13. 13.

    Subtract 70 from 90.

    Formula:Subtraction

    $\text{difference} = a - b$

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14. 14.

    Add 3 + 20 + 14.

    Formula:Addition of Three Numbers

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

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15. 15.

    There are 5 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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16. 16.

    Add 6 + 12 + 14.

    Formula:Addition of Three Numbers

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

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17. 17.

    What is double 13?

    Formula:Doubling

    $d = 2 \times n$

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18. 18.

    You have $9 and $1. How much money do you have altogether?

    Formula:Adding Money

    $\text{total} = a + b$

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19. 19.

    What is 7 + 5?

    Formula:Addition

    $\text{sum} = a + b$

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20. 20.

    You have $6 and $7. How much money do you have altogether?

    Formula:Adding Money

    $\text{total} = a + b$

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