Problem Solving

Last week our class was doing some problem solving. We were learning how to solve subtraction problems by using different strategies.

Here is one of my questions that I solved with my maths mate.

Jasmine has $52 and she gives her sister Ruby $48. How much money does Jasmine have left?

I have decided to use the strategies place value and equal adjustment. Here is my equal adjustment strategy:

52 - 48
-2 -2
50 - 46 = 4

And this is my place value strategy:

52 - 48
52 - 40 = 12
12 - 8 = 4

So that means that the answer is... 4
I hope that you agree with my strategies and If you don't,
then you can comment why you don't like my strategies!
I also hope that you learned something from me today!