问题
解答题
计算下面各题,能简便的要简算. 1
|
答案
1
×37.5%-4 5
×0.8-0.3753 8
=(1
-0.8-1)×0.3754 5
=0×0.375
=0;
÷7+3 11
×6 7 3 11
=
×(3 11
+1 7
)6 7
=
×13 11
=
;3 11
×2 7
÷(3 4
-5 6
)2 9
=
×2 7
÷3 4 11 18
=
×3 14 18 11
=
.27 77