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iGCSE (2021 Edition)

1.09 Roots of numbers

Interactive practice questions

$7^2$72 is equal to which of the following?

$72$72

A

$7\times7$7×7

B

$2\times2\times2\times2\times2\times2\times2$2×2×2×2×2×2×2

C

$7\times2$7×2

D
Easy
< 1 min

Which three of the following numbers are perfect squares?

Easy
< 1 min

Evaluate $4^2$42

Easy
< 1 min

Evaluate $9^2$92

Easy
< 1 min
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Outcomes

0580C1.1E

Identify and use rational and irrational numbers (e.g. π, sqrt(2) ).

0580C1.3A

Calculate with squares, square roots, cubes and cube roots.

0580E1.1E

Identify and use rational and irrational numbers (e.g. π, sqrt(2) ).

0580E1.3A

Calculate with squares, square roots, cubes and cube roots of numbers.

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