1. 624:4=156
156x3=468
560:8=70
468-70=398
2.755:5=151
151x2=302
100-27=73
302-73=229
3.320:5=64
17x8=123
129=64=183
4.46x16=736
102:6=17
736-17=719
5. 208x3=624>255:5=51 624-51=573
6.512:4=128
107x4=428
428-128=300
7.147x2=294
328:4=81
294-81=213
8.852:2=426
852:4=213
426-213=213
213x100=21300