Subtraction can also be thought of as finding the missing addend in a sum. So 7 – 3 is like asking 3 + ? = 7. The missing addend is 4 because 4 must be added to 3 to make 7.
Subtracting Integers using the Brainingcamp Cuisenaire® Rods 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.