Spain · Grado 4 · Practice Sheet 23

1. 1.

   An item costs €44.05 and you pay with €60. How much change do you get?

   Formula:Change Due

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

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2. 2.

   Find the perimeter of a rectangle measuring 43 m by 23 m.

   Formula:Perimeter of a Rectangle

   $P = 2(l + w)$

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3. 3.

   Calculate 14 × 7.

   Formula:Multiplication

   $p = a \times b$

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4. 4.

   Convert 3.04 kilometres into metres.

   Formula:Metric Length Conversion

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

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5. 5.

   Find the mean (average) of these numbers: 33, 31, 63, 37, 32.

   Formula:Arithmetic Mean

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

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6. 6.

   What is 10 × 3?

   Formula:Multiplication (Times Tables)

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

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7. 7.

   Calculate 71 × 6.

   Formula:Multiplication

   $p = a \times b$

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8. 8.

   Calculate 189 ÷ 7.

   Formula:Division

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

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9. 9.

   Find 2/5 of 80.

   Formula:Fraction of a Quantity

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

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10. 10.

    Calculate 73 × 8.

    Formula:Multiplication

    $p = a \times b$

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11. 11.

    Convert 10.89 kilometres into metres.

    Formula:Metric Length Conversion

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

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12. 12.

    An item costs €22.04 and you pay with €40. How much change do you get?

    Formula:Change Due

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

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13. 13.

    What is 8 × 2?

    Formula:Multiplication (Times Tables)

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

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14. 14.

    Calculate 51 × 7.

    Formula:Multiplication

    $p = a \times b$

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15. 15.

    Calculate 84 ÷ 12.

    Formula:Division

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

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16. 16.

    What is 2 × 4?

    Formula:Multiplication (Times Tables)

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

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17. 17.

    A rectangle is 33 cm long and 14 cm wide. Find its area.

    Formula:Area of a Rectangle

    $A = l \times w$

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18. 18.

    Convert 6.73 kilometres into metres.

    Formula:Metric Length Conversion

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

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19. 19.

    Find 1/3 of 12.

    Formula:Fraction of a Quantity

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

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20. 20.

    Find the mean (average) of these numbers: 85, 21, 37, 37, 98.

    Formula:Arithmetic Mean

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

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