Number 2
2 marks · NormalWork out 10^{-2} × 10^7 and write your answer as a decimal.
Work this out on paper, then compare with the answer and worked solution below. With a free account you can submit written answers for marking.
Show answer
100 000 (±0)
Common mistakes: 10^9
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Marking points
M1 · 1 mark · Adds the indices: (-2) + 7
A1 · 1 mark · Writes the correct answer: 10^{5} = 100 000
Worked solution
Add the powers: -2 + 7 = 5, so the answer is 10^5 = 100 000.