Ireland · Year 3 · Practice Sheet 20

1. 1.

   How many tens are there in the number 45?

   Formula:Place Value

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

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2. 2.

   Add 20 + 7 + 15.

   Formula:Addition of Three Numbers

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

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3. 3.

   How many tens are there in the number 57?

   Formula:Place Value

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

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4. 4.

   24 sweets are shared equally among 3 children. How many does each child get?

   Formula:Division (Equal Sharing)

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

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5. 5.

   What is double 20?

   Formula:Doubling

   $d = 2 \times n$

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6. 6.

   Subtract 17 from 92.

   Formula:Subtraction

   $\text{difference} = a - b$

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7. 7.

   Add 18 + 19 + 2.

   Formula:Addition of Three Numbers

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

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8. 8.

   There are 6 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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9. 9.

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

   Formula:Skip Counting

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

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10. 10.

    Fill in the missing number: 14 + ___ = 24.

    Formula:Missing Addend

    $b = \text{total} - a$

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11. 11.

    There are 4 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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12. 12.

    10 sweets are shared equally among 5 children. How many does each child get?

    Formula:Division (Equal Sharing)

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

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13. 13.

    You have €9 and €3. How much money do you have altogether?

    Formula:Adding Money

    $\text{total} = a + b$

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14. 14.

    How many tens are there in the number 83?

    Formula:Place Value

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

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15. 15.

    What is double 11?

    Formula:Doubling

    $d = 2 \times n$

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16. 16.

    Add 26 and 37.

    Formula:Addition

    $\text{sum} = a + b$

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17. 17.

    Add 10 + 8 + 7.

    Formula:Addition of Three Numbers

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

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18. 18.

    You have €7 and €5. How much money do you have altogether?

    Formula:Adding Money

    $\text{total} = a + b$

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19. 19.

    Continue the pattern by counting in 5s: 20, 25, ___

    Formula:Skip Counting

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

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20. 20.

    What is half of 38?

    Formula:Halving

    $h = n \div 2$

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