(2094/95×1.65−2094/95+7/20×2094/95)×47.5×0.8×2.5+10÷5.
问题描述:
(20
×1.65−2094 95
+94 95
×207 20
)×47.5×0.8×2.5+10÷5. 94 95
答
(20
×1.65-2094 95
+94 95
×207 20
)×47.5×0.8×2.5+10÷5,94 95
=(1.65-1+0.35)×20
×47.5×2×0.4×2.5+2,94 95
=1×
×(47.5×2)×(0.4×2.5)+2,1994 95
=
×95×1+2,1994 95
=1994+2,
=1996.