3. Get a deck of cards to practice the counting-on strategy. Draw two cards from the deck and add the two numbers of the cards using a number line. Remember to use the biggest number first!

Video – Adding and subtracting with negative numbers Watch the video to learn about adding and subtracting with negative numbers on a number line and by using number discs.

If you want to show line numbers in a Google Docs document, then you can do it using the Line Numbers for Google Docs Chrome extension.