1. Indices and Surds

1.01 Multiplying and dividing with indices

1.02 Index laws

1.03 Negative indices

1.04 Variables and indices

1.05 Fractional indices

1.06 Irrational numbers

1.07 Adding and subtracting surds

1.08 Multiplying and dividing surds

1.09 Binomial expansions with surds

1.10 Rationalising the denominator

iGCSE (2021 Edition)

1.06 Irrational numbers

Interactive practice questions

Is $\sqrt{25}$√25 rational or irrational?

Rational

A

Irrational

B

Easy

< 1min

Is $\sqrt{361}$√361 rational or irrational?

Easy

< 1min

Is $\sqrt{33}$√33 rational or irrational?

Easy

< 1min

Is $\sqrt[3]{64}$³√64 rational or irrational?

Easy

< 1min

Outcomes

0606C4.1B

Perform simple operations with surds.

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