90 likes | 256 Views
Grid multiplication. The first thing to do. Draw a 2×3 grid and put a multiplication sign in the top left hand corner. The second thing to do. Choose a 1 digit number and a 2 digit number then partition them. For example 7 and
E N D
The first thing to do Draw a 2×3 grid and put a multiplication sign in the top left hand corner
The second thing to do Choose a 1 digit number and a 2 digit number then partition them. For example 7 and 68 make 7, 60 and 8.
The third thing to do Insert the partitions in to the grid as so
The fourth thing to do Do those MULTIPLICATIONS!
The fifth thing to do Add the answers from the multiplications +420 56= 476
So now we are finished Is there big numbers buzzing round your mind that need to be multiplied? Maby you need to do 4697.29×7890.12? Or even 987654321.0987654321×123456789.1? Keep using this method!