Percent
Multiplying by powers-of-ten percents
Find 0.1%, 1%, 10%, 100% or 1000% of whole numbers and decimals. Print ten focused questions with numeric or word prompts and exact answer keys.
Preview and downloadPercent practice
Percentage calculations: part, whole and rate
Find a part, a whole or a percentage in ten configurable problems. Choose five equation forms, whole or decimal operands, word prompts and 1–3 decimal places.
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Identify whether the missing value is a part, a whole or a percent. Calculate using the exact values, then round once to the number of decimal places requested.
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Learning objective
What this activity builds
Identify the unknown in part = rate × whole and select the corresponding multiplication or division.
Worked example
18 is 24% of what number?
75.00 when two decimal places are requested.
Let the whole be w. Then 0.24 ×w =18, so w =18 ÷0.24 =75. Check: 24% of 75 is 18. Multiplying 18 by 0.24 would answer a different question.
Teaching notes
Make the practice count
- Start with percent multiplication before mixing unknowns.
- The five numeric forms cover three unknown roles. Percent and decimal-rate notation provide two ways to practice finding parts and wholes.
- For rate questions, divide the smaller part by the larger whole, then multiply by 100. Decimal givens can appear as the part or the whole.
- Choose word prompts to practice identifying the unknown without relying on a printed operation sign.
- The key retains the original question and the requested trailing zeros. Round the final answer, not the rate midway through the calculation.
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