Isabel measured the length of each type of bead she used to make a key ring. She recorded the measurements in a line plot. Isabel wants to use the 1 2 -inch beads from the key ring to make a zipper pull for her backpack. If the zipper pull measures 3 1 2inches long, how many more 1 2 -inch beads will she need?
Divide 312 by 12. First step is to divide 310 by 12, 12 goes into 310, 20 times. The remainder is 70. Next divide 72 by 12. 12 goes into 72, 6 times. The answer is 20 plus 6, 26
