Thailand · Grade 4 · Practice Sheet 11

1. 1.

   One item costs ฿7.09. Find the total cost of 18 items.

   Formula:Total Cost

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

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2. 2.

   A rectangle is 40 cm long and 19 cm wide. Find its area.

   Formula:Area of a Rectangle

   $A = l \times w$

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3. 3.

   Find the perimeter of a rectangle measuring 35 m by 17 m.

   Formula:Perimeter of a Rectangle

   $P = 2(l + w)$

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4. 4.

   What is 6 × 9?

   Formula:Multiplication (Times Tables)

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

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5. 5.

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

   Formula:Area of a Rectangle

   $A = l \times w$

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6. 6.

   Calculate 24 × 11.

   Formula:Multiplication

   $p = a \times b$

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7. 7.

   One item costs ฿6.18. Find the total cost of 4 items.

   Formula:Total Cost

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

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8. 8.

   Find 1/5 of 35.

   Formula:Fraction of a Quantity

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

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9. 9.

   Find the mean (average) of these numbers: 20, 29, 82, 74, 22, 47.

   Formula:Arithmetic Mean

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

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10. 10.

    What is 6 × 5?

    Formula:Multiplication (Times Tables)

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

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11. 11.

    A rectangle is 34 cm long and 15 cm wide. Find its area.

    Formula:Area of a Rectangle

    $A = l \times w$

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12. 12.

    Find the perimeter of a rectangle measuring 29 m by 32 m.

    Formula:Perimeter of a Rectangle

    $P = 2(l + w)$

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13. 13.

    Calculate 468 ÷ 12.

    Formula:Division

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

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14. 14.

    A rectangle is 37 cm long and 13 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 35 m by 16 m.

    Formula:Perimeter of a Rectangle

    $P = 2(l + w)$

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16. 16.

    Calculate 259 ÷ 7.

    Formula:Division

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

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17. 17.

    An item costs ฿33.8 and you pay with ฿50. How much change do you get?

    Formula:Change Due

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

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18. 18.

    Find 2/3 of 45.

    Formula:Fraction of a Quantity

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

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19. 19.

    Calculate 75 × 4.

    Formula:Multiplication

    $p = a \times b$

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20. 20.

    An item costs ฿3.43 and you pay with ฿20. How much change do you get?

    Formula:Change Due

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

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