Problem Solving

I used Rounding and compensating to solve a math equation.

 The equation is: A farm received a total of 119 millimetres of rain over a 2 month period. If 48 millimetres of rain fell on the farm in June, how many millimetres of rain fell on the farm in month 2?

First I highlighed the key numbers of the equation. They were:119, 48 and 2.

Next I made it into an math sentence it is: 119 - 48. Then I rounded it to the nearst ten: 50 and plused two.

Then I plused 2 to 119 which equals 121. 121 - 50 equals 71.

So in concusion 71 millimetres fell on the farm on the second month.

This was hard because I didn't really understand the question that much.