Powers of 10
big and small numbers, prefixes and metric units · ten difficulty levels, timed, click to reveal
Difficulty
Without a calculator · answers as ordinary numbers (not standard form)
1 · Big powers of 10
2 · Small powers of 10
3 · Millions & billions
4 · Prefixes (kilo, mega, micro …)
5 · × and ÷ by powers of 10
6 · Missing powers
7 · × and ÷ using powers of 10
8 · Metric conversions
9 · How many times bigger?
10 · Extension: × and ÷ by 0.1, 0.01, 10⁻ⁿ
Mixed 1–9
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L10
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