Oman · Grade 4 · Practice Sheet 18

1. 1.

   Find the mean (average) of these numbers: 48, 68, 84, 29.

   Formula:Arithmetic Mean

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

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2. 2.

   Calculate 49 × 5.

   Formula:Multiplication

   $p = a \times b$

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3. 3.

   Find the mean (average) of these numbers: 88, 49, 94, 64, 76.

   Formula:Arithmetic Mean

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

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4. 4.

   An item costs OMR 37.22 and you pay with OMR 40. How much change do you get?

   Formula:Change Due

   $\text{change} = \text{paid} - \text{cost}$

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5. 5.

   Find the mean (average) of these numbers: 47, 98, 63, 24, 97, 31.

   Formula:Arithmetic Mean

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

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6. 6.

   A rectangle is 24 cm long and 6 cm wide. Find its area.

   Formula:Area of a Rectangle

   $A = l \times w$

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7. 7.

   Find the perimeter of a rectangle measuring 42 m by 9 m.

   Formula:Perimeter of a Rectangle

   $P = 2(l + w)$

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8. 8.

   Convert 11.35 kilometres into metres.

   Formula:Metric Length Conversion

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

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9. 9.

   An item costs OMR 38.34 and you pay with OMR 50. How much change do you get?

   Formula:Change Due

   $\text{change} = \text{paid} - \text{cost}$

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10. 10.

    Find the mean (average) of these numbers: 82, 94, 39, 50, 88, 20.

    Formula:Arithmetic Mean

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

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11. 11.

    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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12. 12.

    What is 10 × 3?

    Formula:Multiplication (Times Tables)

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

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13. 13.

    An item costs OMR 22.22 and you pay with OMR 30. How much change do you get?

    Formula:Change Due

    $\text{change} = \text{paid} - \text{cost}$

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14. 14.

    What is 4 × 3?

    Formula:Multiplication (Times Tables)

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

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15. 15.

    24 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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16. 16.

    Find the perimeter of a rectangle measuring 41 m by 21 m.

    Formula:Perimeter of a Rectangle

    $P = 2(l + w)$

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17. 17.

    Calculate 19 × 3.

    Formula:Multiplication

    $p = a \times b$

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18. 18.

    Find the perimeter of a rectangle measuring 37 m by 14 m.

    Formula:Perimeter of a Rectangle

    $P = 2(l + w)$

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19. 19.

    What is 8 × 10?

    Formula:Multiplication (Times Tables)

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

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20. 20.

    One item costs OMR 17.13. Find the total cost of 6 items.

    Formula:Total Cost

    $\text{total} = \text{price} \times \text{quantity}$

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