Mongolia · Grade 4 · Practice Sheet 18

1. 1.

   12 sweets are shared equally among 2 children. How many does each child get?

   Formula:Division (Equal Sharing)

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

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2. 2.

   What is 2 × 10?

   Formula:Multiplication (Times Tables)

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

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3. 3.

   A rectangle is 27 cm long and 29 cm wide. Find its area.

   Formula:Area of a Rectangle

   $A = l \times w$

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4. 4.

   What is 8 × 5?

   Formula:Multiplication (Times Tables)

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

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5. 5.

   Find the mean (average) of these numbers: 17, 62, 87, 55, 28.

   Formula:Arithmetic Mean

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

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6. 6.

   Calculate 39 × 7.

   Formula:Multiplication

   $p = a \times b$

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7. 7.

   20 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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8. 8.

   Convert 7.17 kilometres into metres.

   Formula:Metric Length Conversion

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

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9. 9.

   Calculate 27 × 3.

   Formula:Multiplication

   $p = a \times b$

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10. 10.

    Convert 1.9 kilometres into metres.

    Formula:Metric Length Conversion

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

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11. 11.

    Calculate 31 × 4.

    Formula:Multiplication

    $p = a \times b$

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12. 12.

    Calculate 63 ÷ 9.

    Formula:Division

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

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13. 13.

    Calculate 25 × 8.

    Formula:Multiplication

    $p = a \times b$

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14. 14.

    An item costs ₮21.49 and you pay with ₮30. How much change do you get?

    Formula:Change Due

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

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15. 15.

    A rectangle is 12 cm long and 26 cm wide. Find its area.

    Formula:Area of a Rectangle

    $A = l \times w$

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16. 16.

    Calculate 147 ÷ 7.

    Formula:Division

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

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17. 17.

    Find the perimeter of a rectangle measuring 12 m by 4 m.

    Formula:Perimeter of a Rectangle

    $P = 2(l + w)$

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18. 18.

    Calculate 36 ÷ 3.

    Formula:Division

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

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19. 19.

    Find 1/2 of 30.

    Formula:Fraction of a Quantity

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

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20. 20.

    Find the perimeter of a rectangle measuring 6 m by 6 m.

    Formula:Perimeter of a Rectangle

    $P = 2(l + w)$

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