Philippines · Grade 4 · Practice Sheet 50

1. 1.

   Find 1/5 of 65.

   Formula:Fraction of a Quantity

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

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2. 2.

   Calculate 275 ÷ 11.

   Formula:Division

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

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3. 3.

   Find the area of a square with side length 15 cm.

   Formula:Area of a Square

   $A = s^2$

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4. 4.

   Find the perimeter of a rectangle measuring 26 m by 21 m.

   Formula:Perimeter of a Rectangle

   $P = 2(l + w)$

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5. 5.

   Find the mean (average) of these numbers: 29, 60, 57, 24, 66, 84.

   Formula:Arithmetic Mean

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

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6. 6.

   Find the area of a square with side length 17 cm.

   Formula:Area of a Square

   $A = s^2$

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7. 7.

   Calculate 90 × 5.

   Formula:Multiplication

   $p = a \times b$

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8. 8.

   Find the area of a square with side length 29 cm.

   Formula:Area of a Square

   $A = s^2$

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9. 9.

   Find the mean (average) of these numbers: 62, 18, 80, 97, 39, 63.

   Formula:Arithmetic Mean

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

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10. 10.

    Calculate 90 ÷ 5.

    Formula:Division

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

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11. 11.

    Calculate 96 × 10.

    Formula:Multiplication

    $p = a \times b$

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12. 12.

    Convert 9.16 kilometres into metres.

    Formula:Metric Length Conversion

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

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13. 13.

    One item costs ₱13.52. Find the total cost of 9 items.

    Formula:Total Cost

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

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14. 14.

    Calculate 38 × 6.

    Formula:Multiplication

    $p = a \times b$

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15. 15.

    Calculate 126 ÷ 6.

    Formula:Division

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

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16. 16.

    An item costs ₱28.26 and you pay with ₱40. How much change do you get?

    Formula:Change Due

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

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17. 17.

    A rectangle is 29 cm long and 10 cm wide. Find its area.

    Formula:Area of a Rectangle

    $A = l \times w$

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18. 18.

    Calculate 234 ÷ 6.

    Formula:Division

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

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19. 19.

    Find 1/2 of 36.

    Formula:Fraction of a Quantity

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

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20. 20.

    A rectangle is 5 cm long and 12 cm wide. Find its area.

    Formula:Area of a Rectangle

    $A = l \times w$

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