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简算题:29.4+45.73+100.6+14.2714×757+0.25×327+14.

题目详情
简算题:
29.4+45.73+100.6+14.27
1
4
×7
5
7
+0.25×3
2
7
+
1
4
▼优质解答
答案和解析
29.4+45.73+100.6+14.27
=(29.4+100.6)+(45.73+14.27)
=130+60
=190;

1
4
×7
5
7
+0.25×3
2
7
+
1
4

=
1
4
×(7
5
7
+3
2
7
+1)
=
1
4
×12
=3.