Czechia · Grade 4 · Practice Sheet 50

1. 1.

   A rectangle is 9 cm long and 23 cm wide. Find its area.

   Formula:Area of a Rectangle

   $A = l \times w$

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2. 2.

   What is 3 × 8?

   Formula:Multiplication (Times Tables)

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

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3. 3.

   Calculate 21 × 3.

   Formula:Multiplication

   $p = a \times b$

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4. 4.

   24 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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5. 5.

   Calculate 90 × 11.

   Formula:Multiplication

   $p = a \times b$

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6. 6.

   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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7. 7.

   Calculate 42 ÷ 7.

   Formula:Division

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

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8. 8.

   A rectangle is 38 cm long and 3 cm wide. Find its area.

   Formula:Area of a Rectangle

   $A = l \times w$

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9. 9.

   Find the mean (average) of these numbers: 90, 21, 80, 86, 90, 40.

   Formula:Arithmetic Mean

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

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10. 10.

    Calculate 79 × 9.

    Formula:Multiplication

    $p = a \times b$

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11. 11.

    12 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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12. 12.

    Calculate 54 × 6.

    Formula:Multiplication

    $p = a \times b$

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13. 13.

    Find 1/3 of 51.

    Formula:Fraction of a Quantity

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

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14. 14.

    A rectangle is 36 cm long and 25 cm wide. Find its area.

    Formula:Area of a Rectangle

    $A = l \times w$

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15. 15.

    Find the perimeter of a rectangle measuring 34 m by 30 m.

    Formula:Perimeter of a Rectangle

    $P = 2(l + w)$

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16. 16.

    9 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.

    An item costs Kč 37.18 and you pay with Kč 40. How much change do you get?

    Formula:Change Due

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

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18. 18.

    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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19. 19.

    Calculate 120 ÷ 5.

    Formula:Division

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

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20. 20.

    A rectangle is 9 cm long and 21 cm wide. Find its area.

    Formula:Area of a Rectangle

    $A = l \times w$

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