Greece · Grade 4 · Practice Sheet 6

1. 1.

   An item costs €2.53 and you pay with €20. How much change do you get?

   Formula:Change Due

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

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2. 2.

   One item costs €7.45. Find the total cost of 7 items.

   Formula:Total Cost

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

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3. 3.

   Find the perimeter of a rectangle measuring 42 m by 31 m.

   Formula:Perimeter of a Rectangle

   $P = 2(l + w)$

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4. 4.

   Find 1/3 of 21.

   Formula:Fraction of a Quantity

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

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5. 5.

   Find the mean (average) of these numbers: 69, 91, 72, 33.

   Formula:Arithmetic Mean

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

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6. 6.

   A rectangle is 35 cm long and 12 cm wide. Find its area.

   Formula:Area of a Rectangle

   $A = l \times w$

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7. 7.

   Calculate 15 × 9.

   Formula:Multiplication

   $p = a \times b$

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8. 8.

   20 sweets are shared equally among 4 children. How many does each child get?

   Formula:Division (Equal Sharing)

   $\text{each} = \text{total} \div \text{groups}$

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9. 9.

   Calculate 54 ÷ 6.

   Formula:Division

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

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10. 10.

    Find the mean (average) of these numbers: 19, 29, 31, 95, 13, 21.

    Formula:Arithmetic Mean

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

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11. 11.

    Find 3/5 of 30.

    Formula:Fraction of a Quantity

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

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12. 12.

    Calculate 56 × 8.

    Formula:Multiplication

    $p = a \times b$

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13. 13.

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

    Formula:Area of a Square

    $A = s^2$

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14. 14.

    Calculate 180 ÷ 6.

    Formula:Division

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

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15. 15.

    Calculate 20 × 7.

    Formula:Multiplication

    $p = a \times b$

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16. 16.

    Calculate 240 ÷ 10.

    Formula:Division

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

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17. 17.

    One item costs €11.47. Find the total cost of 7 items.

    Formula:Total Cost

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

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18. 18.

    Calculate 53 × 11.

    Formula:Multiplication

    $p = a \times b$

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19. 19.

    What is 5 × 10?

    Formula:Multiplication (Times Tables)

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

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20. 20.

    Find the area of a square with side length 30 cm.

    Formula:Area of a Square

    $A = s^2$

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