Argentina · Grado 2 · Practice Sheet 43

1. 1.

   How many tens are there in the number 77?

   Formula:Place Value

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

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2. 2.

   What is half of 40?

   Formula:Halving

   $h = n \div 2$

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3. 3.

   What is 3 + 4?

   Formula:Addition

   $\text{sum} = a + b$

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4. 4.

   There are 5 bags with 3 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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5. 5.

   What is half of 50?

   Formula:Halving

   $h = n \div 2$

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6. 6.

   What is 8 + 9?

   Formula:Addition

   $\text{sum} = a + b$

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7. 7.

   Fill in the missing number: 10 + ___ = 15.

   Formula:Missing Addend

   $b = \text{total} - a$

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8. 8.

   There are 4 bags with 3 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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9. 9.

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

   Formula:Adding Money

   $\text{total} = a + b$

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10. 10.

    What is 8 − 4?

    Formula:Subtraction

    $\text{difference} = a - b$

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11. 11.

    Add 6 + 7 + 17.

    Formula:Addition of Three Numbers

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

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12. 12.

    What is 3 + 6?

    Formula:Addition

    $\text{sum} = a + b$

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13. 13.

    Add 71 and 24.

    Formula:Addition

    $\text{sum} = a + b$

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14. 14.

    What is 17 − 5?

    Formula:Subtraction

    $\text{difference} = a - b$

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15. 15.

    What is half of 6?

    Formula:Halving

    $h = n \div 2$

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16. 16.

    Fill in the missing number: 7 + ___ = 15.

    Formula:Missing Addend

    $b = \text{total} - a$

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17. 17.

    What is double 2?

    Formula:Doubling

    $d = 2 \times n$

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18. 18.

    Add 15 and 6.

    Formula:Addition

    $\text{sum} = a + b$

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19. 19.

    Add 9 + 18 + 12.

    Formula:Addition of Three Numbers

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

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20. 20.

    How many tens are there in the number 87?

    Formula:Place Value

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

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