Percent Problems — Increase, Decrease, Error

Percent change = (change ÷ original) × 100. Tax and tip add to the price; discount subtracts.

Grade 7Common Core 7.RP.A.3RPVerified correct ✓

Worked examples

What is 15% of 140?
Answer: 21

What is 30% of 150?
Answer: 45

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Code-verified problems at exactly the right level, explained the way your kid learns.