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Argentina · Grado 7 · Practice Sheet 17

Sheet code: ARGENTINA-G7-S17 · 20 questions

Name: ______________
Date: ______________
  1. 1.

    A rectangle is 4 cm long and 14 cm wide. Find its area.

    Formula:Area of a Rectangle
    A=l×wA = l \times w
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  2. 2.

    A right-angled triangle has legs of 15 cm and 9 cm. Find the length of the hypotenuse.

    Formula:Pythagorean Theorem
    c=a2+b2c = \sqrt{a^2 + b^2}
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  3. 3.

    Solve for x: 9x + 2 = 65.

    Formula:Solving a Linear Equation
    x=c−bax = \dfrac{c - b}{a}
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  4. 4.

    Find 3/5 of 75.

    Formula:Fraction of a Quantity
    result=ab×N\text{result} = \dfrac{a}{b} \times N
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  5. 5.

    A car travels 94 km in 2 hours. Find its average speed.

    Formula:Speed
    v=dtv = \dfrac{d}{t}
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  6. 6.

    What is 30% of 570?

    Formula:Percentage of a Quantity
    result=p100×N\text{result} = \dfrac{p}{100} \times N
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  7. 7.

    One item costs $14.51. Find the total cost of 12 items.

    Formula:Total Cost
    total=price×quantity\text{total} = \text{price} \times \text{quantity}
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  8. 8.

    Find 1/2 of 10.

    Formula:Fraction of a Quantity
    result=ab×N\text{result} = \dfrac{a}{b} \times N
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  9. 9.

    $1,700 is invested at 8% simple interest per year for 5 years. Find the interest earned.

    Formula:Simple Interest
    I=P×r×t100I = \dfrac{P \times r \times t}{100}
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  10. 10.

    A rectangle is 33 cm long and 19 cm wide. Find its area.

    Formula:Area of a Rectangle
    A=l×wA = l \times w
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  11. 11.

    A train moves at 42 km/h for 3.1 hours. How far does it travel?

    Formula:Distance from Speed & Time
    d=v×td = v \times t
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  12. 12.

    A value changes from 147 to 69. Find the percentage change (to 2 d.p.).

    Formula:Percentage Change
    % change=new−oldold×100\%\,\text{change} = \dfrac{\text{new} - \text{old}}{\text{old}} \times 100
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  13. 13.

    Find 2/3 of 57.

    Formula:Fraction of a Quantity
    result=ab×N\text{result} = \dfrac{a}{b} \times N
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  14. 14.

    $3,300 is invested at 4% simple interest per year for 3 years. Find the interest earned.

    Formula:Simple Interest
    I=P×r×t100I = \dfrac{P \times r \times t}{100}
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  15. 15.

    One item costs $14.97. Find the total cost of 7 items.

    Formula:Total Cost
    total=price×quantity\text{total} = \text{price} \times \text{quantity}
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  16. 16.

    A right-angled triangle has legs of 20 cm and 12 cm. Find the length of the hypotenuse.

    Formula:Pythagorean Theorem
    c=a2+b2c = \sqrt{a^2 + b^2}
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  17. 17.

    A value changes from 191 to 228. Find the percentage change (to 2 d.p.).

    Formula:Percentage Change
    % change=new−oldold×100\%\,\text{change} = \dfrac{\text{new} - \text{old}}{\text{old}} \times 100
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  18. 18.

    $70 is shared in the ratio 4 : 1. Find each share.

    Formula:Dividing in a Ratio
    share=parttotal parts×T\text{share} = \dfrac{\text{part}}{\text{total parts}} \times T
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  19. 19.

    A right-angled triangle has legs of 18 cm and 13 cm. Find the length of the hypotenuse.

    Formula:Pythagorean Theorem
    c=a2+b2c = \sqrt{a^2 + b^2}
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  20. 20.

    A rectangle is 12 cm long and 28 cm wide. Find its area.

    Formula:Area of a Rectangle
    A=l×wA = l \times w
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