China · Grade 5 · Practice Sheet 11

1. 1.

   A triangle has a base of 21 cm and a height of 22 cm. Find its area.

   Formula:Area of a Triangle

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

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2. 2.

   A rectangle is 30 cm long and 12 cm wide. Find its area.

   Formula:Area of a Rectangle

   $A = l \times w$

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3. 3.

   What is 30% of 160?

   Formula:Percentage of a Quantity

   $\text{result} = \dfrac{p}{100} \times N$

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4. 4.

   Calculate 95 × 5.

   Formula:Multiplication

   $p = a \times b$

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5. 5.

   Calculate 35 ÷ 5.

   Formula:Division

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

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6. 6.

   One item costs ¥13.61. Find the total cost of 3 items.

   Formula:Total Cost

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

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7. 7.

   Calculate 91 × 3.

   Formula:Multiplication

   $p = a \times b$

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8. 8.

   A rectangle is 36 cm long and 23 cm wide. Find its area.

   Formula:Area of a Rectangle

   $A = l \times w$

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9. 9.

   Find the area of a square with side length 5 cm.

   Formula:Area of a Square

   $A = s^2$

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10. 10.

    A rectangle is 19 cm long and 14 cm wide. Find its area.

    Formula:Area of a Rectangle

    $A = l \times w$

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11. 11.

    A triangle has a base of 13 cm and a height of 25 cm. Find its area.

    Formula:Area of a Triangle

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

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12. 12.

    Calculate 231 ÷ 7.

    Formula:Division

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

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13. 13.

    A rectangle is 17 cm long and 13 cm wide. Find its area.

    Formula:Area of a Rectangle

    $A = l \times w$

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14. 14.

    Calculate 83 × 4.

    Formula:Multiplication

    $p = a \times b$

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15. 15.

    Find 1/2 of 14.

    Formula:Fraction of a Quantity

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

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16. 16.

    Calculate 70 × 8.

    Formula:Multiplication

    $p = a \times b$

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17. 17.

    Find the mean (average) of these numbers: 14, 94, 32, 29, 98.

    Formula:Arithmetic Mean

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

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18. 18.

    A rectangle is 40 cm long and 21 cm wide. Find its area.

    Formula:Area of a Rectangle

    $A = l \times w$

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19. 19.

    An item costs ¥34.49 and you pay with ¥40. How much change do you get?

    Formula:Change Due

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

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20. 20.

    Find the perimeter of a rectangle measuring 8 m by 35 m.

    Formula:Perimeter of a Rectangle

    $P = 2(l + w)$

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