79÷100=0.79
5.85+6.15=12
0.8-0.65=0.15
250×0.04=10
5.89-5.8=0.090.43+0.007=0.43779-0.69=78.314.82×1000=4820
9-0.9=8.15×8=4010000÷500=203.71-1.15=2.56
1-0.04=0.964+5×20=1048.6-2.6=63-1.4=1.6
289-25-75=1896.4+2.8=9.28+1.6=9.625×38×4=3800
0.62-0.25=0.3737+0.14=37.145.26+4.8=10.061.023+1.89=2.913
63-3.07=59.9338+137+63=2388.74-6.59=2.15397-83-197=117
(48+56)÷8=1372×(100+1)=7272