Math Magicians have been looking at different strategies to help them solve subtraction problems (up to 4 digits). Here is Caitlyn and Rachel showing us the equal addition strategy. What we need to remember for this strategy is:
1. It only works for subtractions
2. We need to add the SAME number to each one
3. We do not need to do any compensating at the end because if you have added the same number to each one you will still get the same answer
Have a look! And comment if you learnt something new or if you have any questions about the strategy as the Math Magicians would love to answer them.
I did not know that stratergy is is really cool
ReplyDeleteGreat strategy, we never did that when I was at school. I can use that in my work.
ReplyDelete