SML maths

WALT: Solve multiplication problems using the standard written form with 1 and 2 digits with Algorithms
4 2                44
253               378
     9 x                6 x
2277             2248
3 x 9= 27        6 x 8=48
5 x 9 +2=47    7 x 6+4=46
9 x 7 + 4=22    3 x 6 + 4=22