### Home > CAAC > Chapter 7 > Lesson 7.3.1 > Problem7-86

7-86.
1. Copy and complete each of the Diamond Problems below. The pattern used in the Diamond Problems is shown below. Homework Help ✎

−1 + ? = 10

$\frac{2}{3}\times y =1$

$\frac{1}{\frac{2}{3}}=x+y$