Vietnam · Grade 4 · Practice Sheet 13

1. 1.

   Find 4/8 of 160.

   Formula:Fraction of a Quantity

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

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2. 2.

   Convert 7.45 kilometres into metres.

   Formula:Metric Length Conversion

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

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3. 3.

   Find the area of a square with side length 6 cm.

   Formula:Area of a Square

   $A = s^2$

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4. 4.

   Calculate 372 ÷ 12.

   Formula:Division

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

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5. 5.

   An item costs VND 29.05 and you pay with VND 30. How much change do you get?

   Formula:Change Due

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

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6. 6.

   Find the area of a square with side length 4 cm.

   Formula:Area of a Square

   $A = s^2$

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7. 7.

   Calculate 79 × 6.

   Formula:Multiplication

   $p = a \times b$

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8. 8.

   One item costs VND 9.64. Find the total cost of 3 items.

   Formula:Total Cost

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

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9. 9.

   A rectangle is 22 cm long and 19 cm wide. Find its area.

   Formula:Area of a Rectangle

   $A = l \times w$

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10. 10.

    Find the area of a square with side length 21 cm.

    Formula:Area of a Square

    $A = s^2$

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11. 11.

    A rectangle is 7 cm long and 12 cm wide. Find its area.

    Formula:Area of a Rectangle

    $A = l \times w$

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12. 12.

    36 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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13. 13.

    Convert 3.12 kilometres into metres.

    Formula:Metric Length Conversion

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

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14. 14.

    Calculate 54 ÷ 3.

    Formula:Division

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

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15. 15.

    Find the area of a square with side length 24 cm.

    Formula:Area of a Square

    $A = s^2$

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16. 16.

    Convert 1.26 kilometres into metres.

    Formula:Metric Length Conversion

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

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17. 17.

    An item costs VND 42.05 and you pay with VND 50. How much change do you get?

    Formula:Change Due

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

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18. 18.

    Calculate 16 × 6.

    Formula:Multiplication

    $p = a \times b$

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19. 19.

    Find 1/2 of 12.

    Formula:Fraction of a Quantity

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

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20. 20.

    Calculate 396 ÷ 11.

    Formula:Division

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

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