EG1) 24 x 33
You need to have a left and a right colum. You start of with 1 in the left colum and 33 (biggest number) in the right colum. You keep doubling the left colum until you get past half 24. You double thr right colum aswell.
Left Right
1 33
2 66
4 132
8 264
16 528
You now need to make the number 24 using the left colum.
16 + 8 = 24. Now add their partners!
264 + 528 = 792
24 x 33 = 792
Questions :
1. 43 x 62
2. 12 x 41
3. 14 x 32
You need to have a left and a right colum. You start of with 1 in the left colum and 33 (biggest number) in the right colum. You keep doubling the left colum until you get past half 24. You double thr right colum aswell.
Left Right
1 33
2 66
4 132
8 264
16 528
You now need to make the number 24 using the left colum.
16 + 8 = 24. Now add their partners!
264 + 528 = 792
24 x 33 = 792
Questions :
1. 43 x 62
2. 12 x 41
3. 14 x 32