Learn how group and re-group multiplication sums with step by step examples. Homework help for kids learning Maths in Key Stage 2 (KS2), Year 6 in Primary School.
Grouping and re-grouping multiplication sums
Brackets around numbers show which part of the sum should be done first.
(3 x 4) x 5 =
First work out the sum in the brackets.
3 x 4 = 12
Replace this in the sum where the brackets were.
12 x 5 = 60