Last week I did problem solving using multiplication. I solved 4 multiplication questions and this is one of them. I solved them with my maths mates Blake and Sammy.
"The Legend classes each had 48 children in each of the 4 houses. How many children altogether?"
I did a strategy called place value.
4 x 48=?
4 x 40=l60
4 x 8 =32
32+160=192
Well done James. This is such a clever technique. I will have to remember it for next time I am doing big multiplications. Maybe when I am working on the staffing for the New Central Library? Eg. There are 5 floors, and each floor needs 13 librarians on a Saturday, how many librarians altogether?
ReplyDelete5 x 13 =
Delete5 x 10 =50
5 x 3 =15
15 +50 =65
What a fantastic strategy, James. I'll have to try that out myself sometime :-) Love Mum
ReplyDelete