Chile · Grado 2 · Practice Sheet 17

1. 1.

   How many tens are there in the number 33?

   Formula:Place Value

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

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2. 2.

   What is half of 38?

   Formula:Halving

   $h = n \div 2$

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3. 3.

   Add 67 and 35.

   Formula:Addition

   $\text{sum} = a + b$

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4. 4.

   What is 9 × 2?

   Formula:Multiplication (Times Tables)

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

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5. 5.

   Add 11 + 15 + 14.

   Formula:Addition of Three Numbers

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

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6. 6.

   There are 4 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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7. 7.

   What is half of 34?

   Formula:Halving

   $h = n \div 2$

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8. 8.

   What is double 20?

   Formula:Doubling

   $d = 2 \times n$

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9. 9.

   Add 19 + 10 + 5.

   Formula:Addition of Three Numbers

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

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10. 10.

    What is double 8?

    Formula:Doubling

    $d = 2 \times n$

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11. 11.

    What is 5 − 3?

    Formula:Subtraction

    $\text{difference} = a - b$

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12. 12.

    Fill in the missing number: 4 + ___ = 8.

    Formula:Missing Addend

    $b = \text{total} - a$

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13. 13.

    Subtract 35 from 48.

    Formula:Subtraction

    $\text{difference} = a - b$

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14. 14.

    You have $7 and $1. How much money do you have altogether?

    Formula:Adding Money

    $\text{total} = a + b$

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15. 15.

    Subtract 11 from 58.

    Formula:Subtraction

    $\text{difference} = a - b$

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16. 16.

    What is half of 36?

    Formula:Halving

    $h = n \div 2$

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17. 17.

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

    Formula:Skip Counting

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

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18. 18.

    Add 11 + 15 + 10.

    Formula:Addition of Three Numbers

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

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19. 19.

    Subtract 8 from 42.

    Formula:Subtraction

    $\text{difference} = a - b$

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20. 20.

    How many tens are there in the number 59?

    Formula:Place Value

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

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