Italy · Classe 2 · Practice Sheet 23

1. 1.

   What is half of 16?

   Formula:Halving

   $h = n \div 2$

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2. 2.

   Add 4 + 6 + 7.

   Formula:Addition of Three Numbers

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

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3. 3.

   Continue the pattern by counting in 10s: 30, 40, ___

   Formula:Skip Counting

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

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4. 4.

   What is 4 + 2?

   Formula:Addition

   $\text{sum} = a + b$

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5. 5.

   Add 60 and 49.

   Formula:Addition

   $\text{sum} = a + b$

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6. 6.

   What is 14 − 9?

   Formula:Subtraction

   $\text{difference} = a - b$

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7. 7.

   Subtract 11 from 60.

   Formula:Subtraction

   $\text{difference} = a - b$

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8. 8.

   There are 2 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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9. 9.

   How many tens are there in the number 61?

   Formula:Place Value

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

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10. 10.

    Fill in the missing number: 7 + ___ = 10.

    Formula:Missing Addend

    $b = \text{total} - a$

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11. 11.

    Subtract 32 from 65.

    Formula:Subtraction

    $\text{difference} = a - b$

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12. 12.

    Fill in the missing number: 2 + ___ = 7.

    Formula:Missing Addend

    $b = \text{total} - a$

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13. 13.

    Add 14 + 9 + 20.

    Formula:Addition of Three Numbers

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

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14. 14.

    There are 2 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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15. 15.

    What is 7 − 4?

    Formula:Subtraction

    $\text{difference} = a - b$

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16. 16.

    Subtract 9 from 60.

    Formula:Subtraction

    $\text{difference} = a - b$

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17. 17.

    Add 3 + 15 + 3.

    Formula:Addition of Three Numbers

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

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18. 18.

    Fill in the missing number: 2 + ___ = 7.

    Formula:Missing Addend

    $b = \text{total} - a$

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19. 19.

    What is 4 + 7?

    Formula:Addition

    $\text{sum} = a + b$

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20. 20.

    Continue the pattern by counting in 5s: 15, 20, ___

    Formula:Skip Counting

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

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