Denmark · Grade 4 · Practice Sheet 18

1. 1.

   Calculate 90 × 9.

   Formula:Multiplication

   $p = a \times b$

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2. 2.

   What is 3 × 2?

   Formula:Multiplication (Times Tables)

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

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3. 3.

   Find the mean (average) of these numbers: 79, 73, 21, 72.

   Formula:Arithmetic Mean

   $\bar{x} = \dfrac{\sum x}{n}$

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4. 4.

   Calculate 90 ÷ 6.

   Formula:Division

   $q = \dfrac{a}{b}$

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5. 5.

   45 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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6. 6.

   What is 10 × 9?

   Formula:Multiplication (Times Tables)

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

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7. 7.

   12 sweets are shared equally among 6 children. How many does each child get?

   Formula:Division (Equal Sharing)

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

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8. 8.

   Calculate 37 × 5.

   Formula:Multiplication

   $p = a \times b$

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9. 9.

   Find the mean (average) of these numbers: 11, 63, 24, 88, 33, 71.

   Formula:Arithmetic Mean

   $\bar{x} = \dfrac{\sum x}{n}$

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10. 10.

    Calculate 54 × 6.

    Formula:Multiplication

    $p = a \times b$

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11. 11.

    Find the mean (average) of these numbers: 72, 20, 69, 48.

    Formula:Arithmetic Mean

    $\bar{x} = \dfrac{\sum x}{n}$

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12. 12.

    Convert 7.96 kilometres into metres.

    Formula:Metric Length Conversion

    $1\,\text{km} = 1000\,\text{m}$

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13. 13.

    Calculate 70 × 5.

    Formula:Multiplication

    $p = a \times b$

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14. 14.

    Find the mean (average) of these numbers: 36, 29, 46, 29.

    Formula:Arithmetic Mean

    $\bar{x} = \dfrac{\sum x}{n}$

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15. 15.

    Convert 4.79 kilometres into metres.

    Formula:Metric Length Conversion

    $1\,\text{km} = 1000\,\text{m}$

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16. 16.

    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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17. 17.

    Calculate 81 ÷ 9.

    Formula:Division

    $q = \dfrac{a}{b}$

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18. 18.

    Find the mean (average) of these numbers: 65, 61, 54, 20, 65.

    Formula:Arithmetic Mean

    $\bar{x} = \dfrac{\sum x}{n}$

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19. 19.

    Convert 3.66 kilometres into metres.

    Formula:Metric Length Conversion

    $1\,\text{km} = 1000\,\text{m}$

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20. 20.

    Find the perimeter of a rectangle measuring 44 m by 27 m.

    Formula:Perimeter of a Rectangle

    $P = 2(l + w)$

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