A ratio compares two or more quantities by using parts of a whole. In this bracelet, there are 2 parts red compared to 3 parts blue. The ratio of red beads to blue beads is 2 : 3. This is said aloud ...

In this simplifying ratios worksheet, students need to fully simplify a ratio and write it as a unitary ratio. Questions range from procedural ones that develop fluency to problem-solving questions ...

Summary statistics are often reported to too many or, less often, too few decimal places. The rule of four provides a simple framework to guide authors in the appropriate number of decimal places to ...