Romania · Grade 4 · Practice Sheet 49

1. 1.

   Find the perimeter of a rectangle measuring 34 m by 34 m.

   Formula:Perimeter of a Rectangle

   $P = 2(l + w)$

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2. 2.

   Find the area of a square with side length 18 cm.

   Formula:Area of a Square

   $A = s^2$

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3. 3.

   An item costs lei 5.69 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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4. 4.

   Calculate 69 × 10.

   Formula:Multiplication

   $p = a \times b$

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5. 5.

   An item costs lei 20.22 and you pay with lei 40. How much change do you get?

   Formula:Change Due

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

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6. 6.

   One item costs lei 23.89. Find the total cost of 3 items.

   Formula:Total Cost

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

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7. 7.

   Find 5/8 of 32.

   Formula:Fraction of a Quantity

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

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8. 8.

   One item costs lei 22.57. Find the total cost of 10 items.

   Formula:Total Cost

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

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9. 9.

   Find 2/3 of 18.

   Formula:Fraction of a Quantity

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

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10. 10.

    Calculate 45 × 5.

    Formula:Multiplication

    $p = a \times b$

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11. 11.

    Find the perimeter of a rectangle measuring 40 m by 28 m.

    Formula:Perimeter of a Rectangle

    $P = 2(l + w)$

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12. 12.

    30 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.

    An item costs lei 33.87 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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14. 14.

    What is 5 × 5?

    Formula:Multiplication (Times Tables)

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

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15. 15.

    Find 1/2 of 20.

    Formula:Fraction of a Quantity

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

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16. 16.

    27 sweets are shared equally among 3 children. How many does each child get?

    Formula:Division (Equal Sharing)

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

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17. 17.

    Calculate 200 ÷ 10.

    Formula:Division

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

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18. 18.

    Find the mean (average) of these numbers: 70, 60, 38, 58, 45.

    Formula:Arithmetic Mean

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

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19. 19.

    Calculate 231 ÷ 11.

    Formula:Division

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

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20. 20.

    One item costs lei 16.94. Find the total cost of 17 items.

    Formula:Total Cost

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

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