Common Core Mathematical Content Standards:
4.NBT.4 Fluently add and subtract multi-digit whole numbers using the standard algorithm.
6.RP.3c 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 find the whole, given a part and the percent.
7.RP.3 Use proportional relationships to solve multistep ratio and percent problems. Examples: simple interest, tax, markups and markdowns, percent increase and decrease, percent error.
Grades 4, 6, 7
Common Core Mathematical Practice Standards:
- Make sense of problems and persevere in solving them.
- Reason abstractly and quantitatively.
- Model with mathematics.