Indonesia · Grade 4 · Practice Sheet 27

1. 1.

   Calculate 120 ÷ 12.

   Formula:Division

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

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2. 2.

   Find 4/5 of 60.

   Formula:Fraction of a Quantity

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

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3. 3.

   Find the perimeter of a rectangle measuring 29 m by 30 m.

   Formula:Perimeter of a Rectangle

   $P = 2(l + w)$

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4. 4.

   What is 9 × 8?

   Formula:Multiplication (Times Tables)

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

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5. 5.

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

   Formula:Area of a Square

   $A = s^2$

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6. 6.

   What is 3 × 10?

   Formula:Multiplication (Times Tables)

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

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7. 7.

   An item costs Rp 6.56 and you pay with Rp 10. How much change do you get?

   Formula:Change Due

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

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8. 8.

   Find the mean (average) of these numbers: 37, 90, 53, 20, 89.

   Formula:Arithmetic Mean

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

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9. 9.

   A rectangle is 36 cm long and 20 cm wide. Find its area.

   Formula:Area of a Rectangle

   $A = l \times w$

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10. 10.

    Calculate 74 × 5.

    Formula:Multiplication

    $p = a \times b$

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11. 11.

    Calculate 126 ÷ 6.

    Formula:Division

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

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12. 12.

    A rectangle is 22 cm long and 24 cm wide. Find its area.

    Formula:Area of a Rectangle

    $A = l \times w$

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13. 13.

    Find the mean (average) of these numbers: 54, 92, 81, 23, 18.

    Formula:Arithmetic Mean

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

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14. 14.

    One item costs Rp 8.09. Find the total cost of 16 items.

    Formula:Total Cost

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

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15. 15.

    Calculate 41 × 3.

    Formula:Multiplication

    $p = a \times b$

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16. 16.

    Calculate 105 ÷ 5.

    Formula:Division

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

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17. 17.

    One item costs Rp 4.62. Find the total cost of 13 items.

    Formula:Total Cost

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

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18. 18.

    Calculate 88 × 6.

    Formula:Multiplication

    $p = a \times b$

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19. 19.

    Find 2/4 of 72.

    Formula:Fraction of a Quantity

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

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20. 20.

    Calculate 17 × 3.

    Formula:Multiplication

    $p = a \times b$

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