Subtraction can be thought of as removing or taking away. To subtract 5 – (-3), start by modeling the first number with 5 positive counters. Next remove 3 negative counters. Since there are not enough negative counters, add 3 zero pairs and then remove 3 negative counters. There are 8 positive counters remaining, so 5 – (-3) = 8.
Subtracting Integers using the Brainingcamp Two-Color Counters virtual manipulative.
Brainingcamp virtual manipulatives can be used anywhere with no setup, cleanup, or lost parts. They are highly effective at engaging today’s digital learners and helping them bringing abstract math concepts to life.
Brainingcamp produces virtual manipulatives for iPads, Chromebooks, PCs, and Macs.