Compare by Matching
Line them up to see
Another way to compare: line up the objects and see which row is longer!
🔴🔴🔴🔴🔴🔴🔴 = 7
🔵🔵🔵🔵 = 4
The red row is longer — 7 is more than 4
When you line up two groups, the longer row has more. This is comparing by matching. The red row sticks out further, so 7 is more than 4.