Ecuador · Grado 3 · Practice Sheet 46

1. 1.

   Add 40 and 10.

   Formula:Addition

   $\text{sum} = a + b$

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2. 2.

   Subtract 44 from 93.

   Formula:Subtraction

   $\text{difference} = a - b$

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3. 3.

   Add 43 and 14.

   Formula:Addition

   $\text{sum} = a + b$

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4. 4.

   Subtract 19 from 39.

   Formula:Subtraction

   $\text{difference} = a - b$

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5. 5.

   There are 3 bags with 2 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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6. 6.

   Add 26 and 11.

   Formula:Addition

   $\text{sum} = a + b$

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7. 7.

   You have $9 and $4. How much money do you have altogether?

   Formula:Adding Money

   $\text{total} = a + b$

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8. 8.

   Add 13 + 18 + 11.

   Formula:Addition of Three Numbers

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

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9. 9.

   Add 24 and 46.

   Formula:Addition

   $\text{sum} = a + b$

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10. 10.

    There are 5 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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11. 11.

    What is double 11?

    Formula:Doubling

    $d = 2 \times n$

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12. 12.

    Add 64 and 31.

    Formula:Addition

    $\text{sum} = a + b$

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13. 13.

    Continue the pattern by counting in 10s: 0, 10, ___

    Formula:Skip Counting

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

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14. 14.

    There are 2 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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15. 15.

    Continue the pattern by counting in 10s: 20, 30, ___

    Formula:Skip Counting

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

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16. 16.

    Add 12 + 17 + 10.

    Formula:Addition of Three Numbers

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

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17. 17.

    Add 49 and 49.

    Formula:Addition

    $\text{sum} = a + b$

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18. 18.

    Add 3 + 4 + 2.

    Formula:Addition of Three Numbers

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

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19. 19.

    What is half of 26?

    Formula:Halving

    $h = n \div 2$

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20. 20.

    How many tens are there in the number 80?

    Formula:Place Value

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

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