第19页

信息发布者：
0.03125
1.2

2.8×23.4+11.1×57.6+6.54×28
=2.8×23.4+11.1×57.6+65.4×2.8
=2.8×(23.4+65.4)+11.1×57.6
=2.8×88.8+11.1×57.6
=2.8×8×11.1+11.1×57.6
=22.4×11.1+11.1×57.6
=(22.4+57.6)×11.1
=80×11.1
=888
0.127×12.5−5.4÷16
=12.7×0.125−2.7÷8
=12.7×0.125−2.7×0.125
=(12.7−2.7)×0.125
=10×0.125
=1.25
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