Vietnam · Grade 4 · Practice Sheet 18

1. 1.

   Calculate 35 × 4.

   Formula:Multiplication

   $p = a \times b$

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2. 2.

   One item costs VND 21.75. Find the total cost of 3 items.

   Formula:Total Cost

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

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3. 3.

   What is 9 × 4?

   Formula:Multiplication (Times Tables)

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

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4. 4.

   One item costs VND 5.99. Find the total cost of 17 items.

   Formula:Total Cost

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

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5. 5.

   What is 8 × 9?

   Formula:Multiplication (Times Tables)

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

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6. 6.

   Find 2/5 of 30.

   Formula:Fraction of a Quantity

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

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7. 7.

   Find the mean (average) of these numbers: 42, 85, 30, 25, 17.

   Formula:Arithmetic Mean

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

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8. 8.

   An item costs VND 4.27 and you pay with VND 20. How much change do you get?

   Formula:Change Due

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

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9. 9.

   What is 7 × 2?

   Formula:Multiplication (Times Tables)

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

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10. 10.

    One item costs VND 17.43. Find the total cost of 12 items.

    Formula:Total Cost

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

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11. 11.

    An item costs VND 11.28 and you pay with VND 30. How much change do you get?

    Formula:Change Due

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

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12. 12.

    Find the perimeter of a rectangle measuring 25 m by 17 m.

    Formula:Perimeter of a Rectangle

    $P = 2(l + w)$

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13. 13.

    What is 3 × 7?

    Formula:Multiplication (Times Tables)

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

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14. 14.

    An item costs VND 26.61 and you pay with VND 40. How much change do you get?

    Formula:Change Due

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

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15. 15.

    What is 6 × 10?

    Formula:Multiplication (Times Tables)

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

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16. 16.

    A rectangle is 35 cm long and 3 cm wide. Find its area.

    Formula:Area of a Rectangle

    $A = l \times w$

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17. 17.

    What is 3 × 2?

    Formula:Multiplication (Times Tables)

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

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18. 18.

    42 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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19. 19.

    Find 1/5 of 65.

    Formula:Fraction of a Quantity

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

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20. 20.

    Calculate 61 × 3.

    Formula:Multiplication

    $p = a \times b$

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