Solving for unknown angles (CCSS 7.G.B.5).

Published 2014

Practicing for today's tests. Level 6, Mathematics / Ashley Wilcox.

by Wilcox, Ashley
Published 2016

The book of think, or, How to solve a problem twice your size / written by Marilyn Burns : illustrated by Martha Weston.

by Burns, Marilyn, 1941-
Published 1976