Lebanon · Grade 3 · Practice Sheet 47

1. 1.

   Add 2 + 19 + 8.

   Formula:Addition of Three Numbers

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

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2. 2.

   Continue the pattern by counting in 10s: 40, 50, ___

   Formula:Skip Counting

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

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3. 3.

   Subtract 47 from 52.

   Formula:Subtraction

   $\text{difference} = a - b$

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4. 4.

   Add 20 + 9 + 5.

   Formula:Addition of Three Numbers

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

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5. 5.

   Add 65 and 30.

   Formula:Addition

   $\text{sum} = a + b$

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6. 6.

   What is double 10?

   Formula:Doubling

   $d = 2 \times n$

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7. 7.

   16 sweets are shared equally among 2 children. How many does each child get?

   Formula:Division (Equal Sharing)

   $\text{each} = \text{total} \div \text{groups}$

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8. 8.

   What is 9 × 10?

   Formula:Multiplication (Times Tables)

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

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9. 9.

   What is half of 40?

   Formula:Halving

   $h = n \div 2$

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10. 10.

    Subtract 17 from 66.

    Formula:Subtraction

    $\text{difference} = a - b$

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11. 11.

    Fill in the missing number: 7 + ___ = 12.

    Formula:Missing Addend

    $b = \text{total} - a$

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12. 12.

    What is double 7?

    Formula:Doubling

    $d = 2 \times n$

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13. 13.

    Subtract 14 from 37.

    Formula:Subtraction

    $\text{difference} = a - b$

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14. 14.

    Fill in the missing number: 3 + ___ = 14.

    Formula:Missing Addend

    $b = \text{total} - a$

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15. 15.

    What is double 17?

    Formula:Doubling

    $d = 2 \times n$

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16. 16.

    Subtract 31 from 57.

    Formula:Subtraction

    $\text{difference} = a - b$

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17. 17.

    Add 3 + 19 + 17.

    Formula:Addition of Three Numbers

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

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18. 18.

    Subtract 55 from 77.

    Formula:Subtraction

    $\text{difference} = a - b$

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19. 19.

    How many tens are there in the number 91?

    Formula:Place Value

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

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20. 20.

    Add 8 + 15 + 17.

    Formula:Addition of Three Numbers

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

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