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!

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.

This KS1 maths article explains how when you divide, you share or group an amount into a number of equal parts. A number line can help you to divide.