Romania · Grade 3 · Practice Sheet 23

1. 1.

   Add 5 + 15 + 10.

   Formula:Addition of Three Numbers

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

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2. 2.

   What is double 14?

   Formula:Doubling

   $d = 2 \times n$

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3. 3.

   36 sweets are shared equally among 4 children. How many does each child get?

   Formula:Division (Equal Sharing)

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

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4. 4.

   Add 21 and 24.

   Formula:Addition

   $\text{sum} = a + b$

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5. 5.

   What is double 3?

   Formula:Doubling

   $d = 2 \times n$

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6. 6.

   How many tens are there in the number 87?

   Formula:Place Value

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

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7. 7.

   Subtract 12 from 47.

   Formula:Subtraction

   $\text{difference} = a - b$

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8. 8.

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

   Formula:Skip Counting

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

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9. 9.

   What is double 21?

   Formula:Doubling

   $d = 2 \times n$

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10. 10.

    Subtract 43 from 87.

    Formula:Subtraction

    $\text{difference} = a - b$

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11. 11.

    Fill in the missing number: 3 + ___ = 13.

    Formula:Missing Addend

    $b = \text{total} - a$

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12. 12.

    Subtract 36 from 52.

    Formula:Subtraction

    $\text{difference} = a - b$

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13. 13.

    There are 5 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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14. 14.

    Continue the pattern by counting in 5s: 10, 15, ___

    Formula:Skip Counting

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

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15. 15.

    How many tens are there in the number 32?

    Formula:Place Value

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

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16. 16.

    What is half of 28?

    Formula:Halving

    $h = n \div 2$

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17. 17.

    You have lei 6 and lei 5. How much money do you have altogether?

    Formula:Adding Money

    $\text{total} = a + b$

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18. 18.

    How many tens are there in the number 67?

    Formula:Place Value

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

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19. 19.

    There are 5 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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20. 20.

    What is double 21?

    Formula:Doubling

    $d = 2 \times n$

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