FREE PRACTICE · CLASS 8 MATHEMATICS

A little practice. A clearer mind.

Try each question before reading the answer. These ten questions are a starting point for your practice.

Calculate 2^3 x 2^4. Give your answer as a power of 2 and as a number.
Check your answer
2^7 = 128. Add exponents when multiplying powers with the same base.
Solve 3x - 7 = 20.
Check your answer
x = 9. Add 7 to obtain 3x = 27, then divide by 3.
Three angles of a quadrilateral are 80, 95 and 110 degrees. Find the fourth.
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75 degrees. The four interior angles total 360 degrees.
Find the square root of 144.
Check your answer
12, because 12 x 12 = 144.
A bag costs Rs 800 before a 15% discount. Find the sale price.
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Rs 680. The discount is Rs 120, so subtract 120 from 800.
Expand 3(x + 4).
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3x + 12. Multiply both terms in the bracket by 3.
A die numbered 1 to 6 is fair. Find the probability of rolling an even number.
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1/2. There are 3 even outcomes out of 6 equally likely outcomes.
A rectangular box measures 8 cm by 5 cm by 3 cm. Find its volume.
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120 cubic cm. Multiply length x width x height.
Write 0.00045 in scientific notation.
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4.5 x 10^-4. The decimal point moves four places to the right.
A car travels 120 km using 8 litres of fuel. At the same rate, how far will it travel using 5 litres?
Check your answer
75 km. It travels 15 km per litre, so 15 x 5 = 75.