题目内容

口算
8.6-5.4=
0.06+3.42=7.6+4.2=1.06+9.4=125×88=
4.85-3.25=7.012×100=704.5÷1000=10-2.3=25×16=
8.6-5.4=3.2,0.06+3.42=3.48,7.6+4.2=11.8,1.06+9.4=10.46,125×88=11000,
4.85-3.25=1.6,7.012×100=701.2,704.5÷1000=0.7045,10-2.3=7.7,25×16=400.
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