A number line can be useful when answering questions involving negative numbers. When adding a positive number, go up the number line (move to the right). When subtracting a positive number, go down ...

Watch the video to learn about adding and subtracting with negative numbers on a number line and by using number discs. Adding and subtracting with negative numbers. Let's talk about two ways to help ...

Mrs. McCartney talks addition with D.C.; practices hopping the numberline with Springling. Join Mrs. McCartney for an addition number talk with D.C.! Get your hopping skills ready so you can see our ...