0.4×（25＋0.25）4.63×1.9＋5.37×1.950÷2.5＋4.5×1.63.07÷0.125÷83.2×5.7＋6.8×5.716.7-1.2＋3.9-0.739.83×3.15÷9.833.47×101-3.47统统简便计算~

Question

0.4×（25＋0.25） 4.63×1.9＋5.37×1.9 50÷2.5＋4.5×1.6
3.07÷0.125÷8 3.2×5.7＋6.8×5.7 16.7-1.2＋3.9-0.73
9.83×3.15÷9.83 3.47×101-3.47
统统简便计算~

Answer 1

1.=0.4*25+0.4*0.25
=10+0.1
=10.1
2.=1.9*(4.63+5.37)
=1.9*10
=19
3.=20+(2.5+2)*4*0.4
=20+2.5*4*0.4+2*4*0.4
=20+4+3.2
=27.2
4.=3.07/(0.125*8)
=3.07/1
=3.07
5.=5.7*(3.2+6.8)
=5.7*10
=57
6.=16.7-1.2+3.9-(1-0.27)
=16.7-1.2+3.9-1+0.27
=18.67
7.=9.83/9.83*3.15
=1*3.15
=3.15
8.=3.47*(101-1)
=3.47*100
=347