Greece · Grade 5 · Practice Sheet 15

1. 1.

   Calculate 82 × 6.

   Formula:Multiplication

   $p = a \times b$

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2. 2.

   Find the mean (average) of these numbers: 98, 55, 63, 83.

   Formula:Arithmetic Mean

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

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3. 3.

   A car travels 270 km in 6 hours. Find its average speed.

   Formula:Speed

   $v = \dfrac{d}{t}$

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4. 4.

   Calculate 90 ÷ 3.

   Formula:Division

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

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5. 5.

   Convert 3.11 kilometres into metres.

   Formula:Metric Length Conversion

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

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6. 6.

   Find the mean (average) of these numbers: 72, 22, 45, 59, 35, 53.

   Formula:Arithmetic Mean

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

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7. 7.

   Calculate 36 ÷ 4.

   Formula:Division

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

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8. 8.

   Find the perimeter of a rectangle measuring 6 m by 19 m.

   Formula:Perimeter of a Rectangle

   $P = 2(l + w)$

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9. 9.

   Convert 4.62 kilometres into metres.

   Formula:Metric Length Conversion

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

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10. 10.

    Calculate 37 × 12.

    Formula:Multiplication

    $p = a \times b$

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11. 11.

    Calculate 128 ÷ 4.

    Formula:Division

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

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12. 12.

    A car travels 664 km in 8 hours. Find its average speed.

    Formula:Speed

    $v = \dfrac{d}{t}$

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13. 13.

    Convert 5.94 kilometres into metres.

    Formula:Metric Length Conversion

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

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14. 14.

    Find 1/2 of 30.

    Formula:Fraction of a Quantity

    $\text{result} = \dfrac{a}{b} \times N$

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15. 15.

    Find the perimeter of a rectangle measuring 25 m by 9 m.

    Formula:Perimeter of a Rectangle

    $P = 2(l + w)$

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16. 16.

    Find the area of a square with side length 13 cm.

    Formula:Area of a Square

    $A = s^2$

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17. 17.

    A car travels 295 km in 5 hours. Find its average speed.

    Formula:Speed

    $v = \dfrac{d}{t}$

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18. 18.

    A triangle has a base of 12 cm and a height of 6 cm. Find its area.

    Formula:Area of a Triangle

    $A = \tfrac{1}{2} b h$

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19. 19.

    Calculate 92 × 8.

    Formula:Multiplication

    $p = a \times b$

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20. 20.

    Find the mean (average) of these numbers: 71, 16, 17, 63, 73, 62.

    Formula:Arithmetic Mean

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

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