This math topic focuses on calculating the percentage change when a number decreases by 10%. It is designed to help learners understand how to determine the percent decrease from an original number to a reduced number. Specifically, each problem presents an initial number and its 10% value, followed by a new smaller number, asking students to calculate the percent change resulting from the shrinkage. This topic forms part of a broader introduction to percentages, developing foundational skills in understanding and working with percent changes.
Work on practice problems directly here, or download the printable pdf worksheet to practice offline.
Complete these online problems with 80% or 4 correct answers in a row. Results are immediate.
What percent did the number change by?
10% of 40 is 4
What is the % change if 40 shrinks to 36