Romania · Grade 4 · Practice Sheet 30

1. 1.

   One item costs lei 18.03. Find the total cost of 6 items.

   Formula:Total Cost

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

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2. 2.

   What is 10 × 3?

   Formula:Multiplication (Times Tables)

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

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3. 3.

   Calculate 73 × 4.

   Formula:Multiplication

   $p = a \times b$

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4. 4.

   What is 6 × 10?

   Formula:Multiplication (Times Tables)

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

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5. 5.

   Convert 4.11 kilometres into metres.

   Formula:Metric Length Conversion

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

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6. 6.

   An item costs lei 9.61 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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7. 7.

   Convert 4.7 kilometres into metres.

   Formula:Metric Length Conversion

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

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8. 8.

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

   Formula:Area of a Rectangle

   $A = l \times w$

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9. 9.

   What is 7 × 9?

   Formula:Multiplication (Times Tables)

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

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10. 10.

    Find the mean (average) of these numbers: 22, 25, 79, 18.

    Formula:Arithmetic Mean

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

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11. 11.

    One item costs lei 3.96. Find the total cost of 12 items.

    Formula:Total Cost

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

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12. 12.

    Calculate 83 × 12.

    Formula:Multiplication

    $p = a \times b$

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13. 13.

    A rectangle is 36 cm long and 18 cm wide. Find its area.

    Formula:Area of a Rectangle

    $A = l \times w$

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14. 14.

    Find the area of a square with side length 7 cm.

    Formula:Area of a Square

    $A = s^2$

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15. 15.

    Calculate 56 ÷ 4.

    Formula:Division

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

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16. 16.

    Find the area of a square with side length 11 cm.

    Formula:Area of a Square

    $A = s^2$

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17. 17.

    One item costs lei 13.6. Find the total cost of 14 items.

    Formula:Total Cost

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

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18. 18.

    Find the area of a square with side length 22 cm.

    Formula:Area of a Square

    $A = s^2$

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19. 19.

    What is 7 × 8?

    Formula:Multiplication (Times Tables)

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

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20. 20.

    Calculate 72 × 11.

    Formula:Multiplication

    $p = a \times b$

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