Using the part-whole and comparison model, this video teaches how to approach a given 2-step problem sum on subtraction and division, and shows the detailed steps of how to solve it. More examples at http://my.homecampus.com.sg/Learn/Pri...
Question in the video:
A boy collects a total of 316 stamps, stickers and coins.
He collects four times as many stamps as stickers.
There are 46 coins.
How many stickers are there?