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Core Mathematics

Core Mathematics · Quick practice · answer shown after each question

Real numbers, surds and number bases

Question 1 of 10

Question 1 of 10

Which of these is a rational number?

Question 2 of 10

Question 2 of 10

Arrange √2, 1.5, 7/5 in ascending order.

Question 3 of 10

Question 3 of 10

Add 101₂ and 111₂.

Question 4 of 10

Question 4 of 10

Write 0.000 47 in standard form.

Question 5 of 10

Question 5 of 10

Rationalise 6/√2.

Question 6 of 10

Question 6 of 10

Express 3/(2 + √3) in the form a + b√3.

Question 7 of 10

Question 7 of 10

Rationalise the denominator of 6/√3.

Question 8 of 10

Question 8 of 10

Convert 46 to base 8.

Question 9 of 10

Question 9 of 10

Simplify √50 − √18.

Question 10 of 10

Question 10 of 10

Find the value of x if 23ₓ = 13 (base ten).

Questions written by OtisamLMS in the style of the WASSCE. They are not WAEC past questions.