试题与答案

简算题:29.4+45.73+100.6+14.2714×757+0.25×32

题型:解答题

题目:

简算题:
29.4+45.73+100.6+14.27
1
4
×7
5
7
+0.25×3
2
7
+
1
4

答案:

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.

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