Romania · Grade 5 · Practice Sheet 37

1. 1.

   One item costs lei 23.25. Find the total cost of 10 items.

   Formula:Total Cost

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

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2. 2.

   A rectangle is 14 cm long and 16 cm wide. Find its area.

   Formula:Area of a Rectangle

   $A = l \times w$

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3. 3.

   Find the area of a square with side length 16 cm.

   Formula:Area of a Square

   $A = s^2$

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4. 4.

   Calculate 15 × 11.

   Formula:Multiplication

   $p = a \times b$

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5. 5.

   An item costs lei 32.33 and you pay with lei 50. How much change do you get?

   Formula:Change Due

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

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6. 6.

   Calculate 26 × 12.

   Formula:Multiplication

   $p = a \times b$

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7. 7.

   Find the mean (average) of these numbers: 68, 23, 44, 86.

   Formula:Arithmetic Mean

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

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8. 8.

   Find the perimeter of a rectangle measuring 14 m by 4 m.

   Formula:Perimeter of a Rectangle

   $P = 2(l + w)$

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9. 9.

   Calculate 72 ÷ 4.

   Formula:Division

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

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10. 10.

    Convert 4.14 kilometres into metres.

    Formula:Metric Length Conversion

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

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11. 11.

    An item costs lei 10.64 and you pay with lei 20. How much change do you get?

    Formula:Change Due

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

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12. 12.

    Calculate 42 × 6.

    Formula:Multiplication

    $p = a \times b$

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13. 13.

    Find the perimeter of a rectangle measuring 41 m by 11 m.

    Formula:Perimeter of a Rectangle

    $P = 2(l + w)$

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14. 14.

    A rectangle is 22 cm long and 30 cm wide. Find its area.

    Formula:Area of a Rectangle

    $A = l \times w$

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15. 15.

    Find the mean (average) of these numbers: 64, 20, 26, 22, 12.

    Formula:Arithmetic Mean

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

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16. 16.

    Find the area of a square with side length 10 cm.

    Formula:Area of a Square

    $A = s^2$

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17. 17.

    A car travels 321 km in 3 hours. Find its average speed.

    Formula:Speed

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

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18. 18.

    Calculate 144 ÷ 6.

    Formula:Division

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

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19. 19.

    Calculate 12 × 8.

    Formula:Multiplication

    $p = a \times b$

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20. 20.

    A triangle has a base of 5 cm and a height of 14 cm. Find its area.

    Formula:Area of a Triangle

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

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