做5.6.7.8题
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/04 13:25:54
![做5.6.7.8题](/uploads/image/z/13403967-15-7.jpg?t=%E5%81%9A5.6.7.8%E9%A2%98)
xPJ0a@i(yIF[7"G1SΝnt+nY:
*$snr8y1zȈ&קܟ_:y:mӦ+x\B=ViFi$UT%1&Z[im?.aFs:͈921:T@?ܛȜ`aOY49hJ//*eM3(3Hǃu6ɐiCT-X|bD3)q"J9`% 0)4$lASA_-C?nP©2ͨƆr^̩CrRw"rfd&;h~86mvPVr6nԱ
做5.6.7.8题
做5.6.7.8题
做5.6.7.8题
(5)22+(-4)+(-2)+4
=18-2+4
=16+4
=20
(6)4.6-(3/4+1.5-4)-3/4
=(4.6+4)-(3/4+3/4)-1.5
=8.6-(1.5+1.5)
=8.6-3
=5.6
(7)(1/2-3+5/6-7/12)÷(-1/36)
=(1/2-3+5/6-7/12)x(-36)
=-1/2x36+3x36-5/6x36+7/12x36
=-18+108-30+21
=81
(8)原式=[1/6-1/6]÷(-8)
=0÷(-8)
=0