Algeria · Grade 3 · Practice Sheet 30

1. 1.

   Add 19 + 5 + 20.

   Formula:Addition of Three Numbers

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

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2. 2.

   Continue the pattern by counting in 3s: 6, 9, ___

   Formula:Skip Counting

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

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3. 3.

   Add 53 and 51.

   Formula:Addition

   $\text{sum} = a + b$

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4. 4.

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

   Formula:Skip Counting

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

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5. 5.

   Add 56 and 35.

   Formula:Addition

   $\text{sum} = a + b$

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6. 6.

   You have DA 1 and DA 3. How much money do you have altogether?

   Formula:Adding Money

   $\text{total} = a + b$

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7. 7.

   Add 11 and 10.

   Formula:Addition

   $\text{sum} = a + b$

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8. 8.

   How many tens are there in the number 65?

   Formula:Place Value

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

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9. 9.

   Fill in the missing number: 15 + ___ = 20.

   Formula:Missing Addend

   $b = \text{total} - a$

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10. 10.

    Add 18 + 7 + 15.

    Formula:Addition of Three Numbers

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

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11. 11.

    Continue the pattern by counting in 3s: 3, 6, ___

    Formula:Skip Counting

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

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12. 12.

    Add 84 and 50.

    Formula:Addition

    $\text{sum} = a + b$

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13. 13.

    Add 20 + 14 + 5.

    Formula:Addition of Three Numbers

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

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14. 14.

    Continue the pattern by counting in 3s: 0, 3, ___

    Formula:Skip Counting

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

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15. 15.

    Add 11 and 36.

    Formula:Addition

    $\text{sum} = a + b$

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16. 16.

    What is half of 32?

    Formula:Halving

    $h = n \div 2$

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17. 17.

    There are 4 bags with 6 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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18. 18.

    What is half of 28?

    Formula:Halving

    $h = n \div 2$

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19. 19.

    What is 9 × 6?

    Formula:Multiplication (Times Tables)

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

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20. 20.

    What is double 2?

    Formula:Doubling

    $d = 2 \times n$

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