# 6.4: Circles and Arrows

**Circles and Arrows - Solve for Unknowns**

**Teacher Notes**

Circles and Arrows show grids in which circles contain numbers and letters that represent unknown quantities. Arrows point to sums of rows and columns. For example, in the top row, . In the first column, . Students use the grid relationships to figure out the values of the letters. Each grid contains three different letters and one number.

**Solutions**

The arrows point to the sum of each row or column. Figure out the value of each letter.

The arrows point to the sum of each row or column. Figure out the value of each letter.

The arrows point to sum of each row or column. Figure out the value of each letter.

The arrows point to the sum of each row or column. Figure out the value of each letter.