Strategies of Solving

We learnt about the different strategies of solving equations.

First, we were answering question that were based on addition and subtraction. My group knew that the number line could help us for both, addition and subtraction, so we show that. Written Algorithm was one of the strategies we used.

The first equation was 84-7. To do 84-7, we borrow a ten from 80 that leaves us a 70 so the ten that we borrowed, we add it to the 4 that makes 14, so 14-7 is 7 so the answer is 77. We check if it was correct by adding 3 to 77 that makes 80 so we added 4 to 80 because if we take away 3 to 7 that leaves 4. This made 84, so the correct answer was 77.

The next set of question was based on multiplication and division. The first question was 5x5. The strategies we used were: skip counting in 5's, repeated addition and written algorithm. 5x5 means that we had to skip 5, five times, we knew that the correct answer was 25.

I enjoyed this activity, but I found some of them difficult.

LI: to practice a range of strategies to solve questions using all 4 operations.