1.(1+2.3+3.4)*(2.3+3.4+6.5)-(1+2.3+3.4+6.5)*(2.3+3.4)2.8.8-0.8*8.8-0.83.(2.8-2.8*0.6)/(0.6+0.52)4.(6.2*1.25+1.25*2.6)/2.25.(1.25*2.7*5.1)/(8.1*0.25*1.7)6.(0.8*0.6/1.2)/0.257 [0.35/(3.74-3.24)/0.4]*0.288 3.7-3*0

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/05 01:34:03
1.(1+2.3+3.4)*(2.3+3.4+6.5)-(1+2.3+3.4+6.5)*(2.3+3.4)2.8.8-0.8*8.8-0.83.(2.8-2.8*0.6)/(0.6+0.52)4.(6.2*1.25+1.25*2.6)/2.25.(1.25*2.7*5.1)/(8.1*0.25*1.7)6.(0.8*0.6/1.2)/0.257 [0.35/(3.74-3.24)/0.4]*0.288 3.7-3*0

1.(1+2.3+3.4)*(2.3+3.4+6.5)-(1+2.3+3.4+6.5)*(2.3+3.4)2.8.8-0.8*8.8-0.83.(2.8-2.8*0.6)/(0.6+0.52)4.(6.2*1.25+1.25*2.6)/2.25.(1.25*2.7*5.1)/(8.1*0.25*1.7)6.(0.8*0.6/1.2)/0.257 [0.35/(3.74-3.24)/0.4]*0.288 3.7-3*0
1.(1+2.3+3.4)*(2.3+3.4+6.5)-(1+2.3+3.4+6.5)*(2.3+3.4)
2.8.8-0.8*8.8-0.8
3.(2.8-2.8*0.6)/(0.6+0.52)
4.(6.2*1.25+1.25*2.6)/2.2
5.(1.25*2.7*5.1)/(8.1*0.25*1.7)
6.(0.8*0.6/1.2)/0.25
7 [0.35/(3.74-3.24)/0.4]*0.28
8 3.7-3*0.7-3.7*0.6

1.(1+2.3+3.4)*(2.3+3.4+6.5)-(1+2.3+3.4+6.5)*(2.3+3.4)2.8.8-0.8*8.8-0.83.(2.8-2.8*0.6)/(0.6+0.52)4.(6.2*1.25+1.25*2.6)/2.25.(1.25*2.7*5.1)/(8.1*0.25*1.7)6.(0.8*0.6/1.2)/0.257 [0.35/(3.74-3.24)/0.4]*0.288 3.7-3*0
1.(1+2.3+3.4)*(2.3+3.4+6.5)-(1+2.3+3.4+6.5)*(2.3+3.4)
=(1.2+2.3+3.4)x(2.3+3.4)+(1+2.3+3.4)x6.5-(1+2.3+3.4)x(2.3+3.4)-6.5x(2.3+3.4)=6.5x(1+2.3+3.4-2.3-3.4)=6.5
2.8.8-0.8*8.8-0.8=8.8x0.2-0.8=0.8x(2.2-1)=(1-0.2)(1+0.2)=1-0.04=0.96
3.(2.8-2.8*0.6)/(0.6+0.52)=(2.8x0.4)/1.12=2.8/2.8=1
4.(6.2*1.25+1.25*2.6)/2.2=1.25x8.8/2.2=1.25x4=5
5.(1.25*2.7*5.1)/(8.1*0.25*1.7)=(0.25x5x3x0.9x1.7x3)/(9x0.9x0.25x1.7)=5
6.(0.8*0.6/1.2)/0.25=4x0.8x0.6/(2x0.6)=1.6
7 [0.35/(3.74-3.24)/0.4]*0.28=(0.35/0.5)/0.4x0.28=7/4x0.28=7x0.07=0.49
8 3.7-3*0.7-3.7*0.6 =3.7x0.4-3x0.7=1.48-2.1=-0.62