Italy · Classe 2 · Practice Sheet 20

1. 1.

   What is 1 + 9?

   Formula:Addition

   $\text{sum} = a + b$

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2. 2.

   What is 9 − 7?

   Formula:Subtraction

   $\text{difference} = a - b$

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3. 3.

   Add 68 and 8.

   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.

   Subtract 50 from 62.

   Formula:Subtraction

   $\text{difference} = a - b$

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6. 6.

   Fill in the missing number: 8 + ___ = 12.

   Formula:Missing Addend

   $b = \text{total} - a$

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7. 7.

   What is half of 4?

   Formula:Halving

   $h = n \div 2$

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8. 8.

   How many tens are there in the number 17?

   Formula:Place Value

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

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9. 9.

   What is half of 8?

   Formula:Halving

   $h = n \div 2$

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10. 10.

    Continue the pattern by counting in 2s: 0, 2, ___

    Formula:Skip Counting

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

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11. 11.

    What is double 25?

    Formula:Doubling

    $d = 2 \times n$

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12. 12.

    What is half of 12?

    Formula:Halving

    $h = n \div 2$

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13. 13.

    Continue the pattern by counting in 2s: 6, 8, ___

    Formula:Skip Counting

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

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14. 14.

    What is 8 + 6?

    Formula:Addition

    $\text{sum} = a + b$

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15. 15.

    Subtract 70 from 88.

    Formula:Subtraction

    $\text{difference} = a - b$

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16. 16.

    Add 78 and 30.

    Formula:Addition

    $\text{sum} = a + b$

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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 4 + 2 + 20.

    Formula:Addition of Three Numbers

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

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19. 19.

    What is 6 + 2?

    Formula:Addition

    $\text{sum} = a + b$

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20. 20.

    Add 18 and 47.

    Formula:Addition

    $\text{sum} = a + b$

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