buta040401 2912:8=364
1200:300=4
1*144=144
144:12=12
364+4=368
368-12=356


51855+9857= 61712
61712:532=116
116:58=2
2*10000=20000

nara75 2912:8+1200:300-1*144:12=356
1)2912:8=364
2)1200:300=4
3)144*1=144
4)144:12=12
5)364+4=368
6)368-12=356