Question

48*5=48*10/2=
290/5=290/10*2=
670/5=670/10*2=
54*5=54*10/2=
8*50=8*100/2=
900/50=900/100*2=
360/5=360/10*2=
840/5=840/10*2=

Answer 1

48*5=240
290/5=58
670/5=134
54*5=270
8*50=400
900/50=18
360/5=72
840/5=168