Solving Multiplication and Division Word Problems about Mass

The video tutorial teaches how to solve multiplication and division word problems related to mass. It begins with an introduction to a problem involving Tyrone and Mike, where Tyrone's mass is four times Mike's. The lesson explains the concept of mass and common mistakes in solving word problems. It provides strategies for problem-solving, including drawing pictures and using number patterns. An example problem with oranges is used to demonstrate these strategies. Finally, the tutorial returns to the original problem, using a number pattern to find Mike's mass.

What is the mass of 4 oranges if one orange has a mass of 90 grams?

How did the teacher use a number pattern to solve for Mike's mass?