问题
解答题
简算题: 29.4+45.73+100.6+14.27
|
答案
29.4+45.73+100.6+14.27
=(29.4+100.6)+(45.73+14.27)
=130+60
=190;
×71 4
+0.25×35 7
+2 7 1 4
=
×(71 4
+35 7
+1)2 7
=
×121 4
=3.
简算题: 29.4+45.73+100.6+14.27
|
29.4+45.73+100.6+14.27
=(29.4+100.6)+(45.73+14.27)
=130+60
=190;
×71 4
+0.25×35 7
+2 7 1 4
=
×(71 4
+35 7
+1)2 7
=
×121 4
=3.