This math topic focuses on calculating the percent change when a number grows by a certain amount, specifically using multiples of 10%. It addresses the concept of determining how much a given number has increased in percent terms. Each problem presents the initial and increased amounts, and students are tasked with figuring out the percentage increase from the original number. Options are provided for answers, reflecting common mistakes or misunderstandings that might occur during calculation. This topic is an introduction level part of a broader unit on percentages.
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What percent did the number change by?
10% of 100 is 10
What is the % change if 100 grows to 120