CCSS 6.RP.3C (Common Core, 6th Grade): "Find a percent of a quantity as a rate per 100 (e.g., 30% of a quantity means 30/100 times the quantity]; solve problems involving finding the whole, given a part and the percent." The worksheets below practice this standard. Each one is a free printable PDF with an answer key, comes in multiple versions, and can also be assigned digitally - no login or account needed.
Ratios and Proportional Relationships Understand ratio concepts and use ratio reasoning to solve problems.3Use ratio and rate reasoning to solve real-world and mathematical problems, e.g., by reasoning about tables of equivalent ratios, tape diagrams, double number line diagrams, or equations.cFind a percent of a quantity as a rate per 100 (e.g., 30% of a quantity means 30/100 times the quantity); solve problems involving finding the whole, given a part and the percent.