Half, 50% and 0.5 are three ways to write the same amount. Speed solvers know the key families by heart — halves, quarters, fifths, eighths, tenths and twentieths — and swap between them in a second. Percent to decimal is ÷ 100; decimal to percent is × 100.
Work it out in your head or on paper, then tap your answer — or type it and press Check. Stuck? Press “Show me how”.
Right: 0 · Tried: 0
🏁 Lesson 20 test
20 questions. Check each answer, then go to the next one. Get 16 or more right to pass — and beat the clock: finish within 2 min.
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Part 4 · Speed decimals, fractions and percentages. You can still take the test without signing in.
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