Peru · Grado 4 · Practice Sheet 17

1. 1.

   One item costs S/ 20.55. Find the total cost of 5 items.

   Formula:Total Cost

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

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2. 2.

   Calculate 93 × 3.

   Formula:Multiplication

   $p = a \times b$

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3. 3.

   What is 3 × 2?

   Formula:Multiplication (Times Tables)

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

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4. 4.

   Find 1/2 of 18.

   Formula:Fraction of a Quantity

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

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5. 5.

   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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6. 6.

   Find the mean (average) of these numbers: 26, 75, 47, 39, 25, 95.

   Formula:Arithmetic Mean

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

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7. 7.

   Calculate 120 ÷ 10.

   Formula:Division

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

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8. 8.

   An item costs S/ 25.21 and you pay with S/ 40. How much change do you get?

   Formula:Change Due

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

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9. 9.

   Calculate 21 × 11.

   Formula:Multiplication

   $p = a \times b$

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10. 10.

    One item costs S/ 23.23. Find the total cost of 13 items.

    Formula:Total Cost

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

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11. 11.

    10 sweets are shared equally among 5 children. How many does each child get?

    Formula:Division (Equal Sharing)

    $\text{each} = \text{total} \div \text{groups}$

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12. 12.

    What is 9 × 7?

    Formula:Multiplication (Times Tables)

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

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13. 13.

    30 sweets are shared equally among 5 children. How many does each child get?

    Formula:Division (Equal Sharing)

    $\text{each} = \text{total} \div \text{groups}$

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14. 14.

    An item costs S/ 31 and you pay with S/ 40. How much change do you get?

    Formula:Change Due

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

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15. 15.

    Convert 4.03 kilometres into metres.

    Formula:Metric Length Conversion

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

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16. 16.

    Find 1/3 of 45.

    Formula:Fraction of a Quantity

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

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17. 17.

    What is 8 × 3?

    Formula:Multiplication (Times Tables)

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

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18. 18.

    Calculate 33 × 10.

    Formula:Multiplication

    $p = a \times b$

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19. 19.

    One item costs S/ 5.73. Find the total cost of 19 items.

    Formula:Total Cost

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

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20. 20.

    Find the perimeter of a rectangle measuring 25 m by 21 m.

    Formula:Perimeter of a Rectangle

    $P = 2(l + w)$

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