Free Maths Calculator
Powers and Roots Calculator
Raise any number to a power, or take square and cube roots, with the meaning spelled out: powers as repeated multiplication, negative powers as one over, and roots checked against their perfect squares and cubes. Square roots that are not whole simplify into exact surds before the decimal is given.
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Answer
Method, Step by Step
Worked Example
Work out 3⁴.
- 3⁴ means four copies of 3 multiplied together: 3 × 3 × 3 × 3
- Multiply up in stages:3 × 3 = 9, then 9 × 3 = 27, then 27 × 3 = 81
- So 3⁴ = 81
Answer: 81
Try These Yourself
Work out 2⁵.Show answer
Answer: 32
2 × 2 × 2 × 2 × 2 = 32.
Work out √81.Show answer
Answer: 9
9 × 9 = 81.
Simplify √48.Show answer
Answer: 4√3
48 = 16 × 3, so √48 = √16 × √3 = 4√3.