问题 解答题
47×67+352-51×59+0.0
7
+14.9
2
=______.
答案

47×67+352-51×59+0.0

7
+14.9
2

=3149+1225-3009+

7
90
+14.9+
2
90

=3149+1225-3009+14.9+(

7
90
+
2
90

=3149+1225-3009+14.9+0.1

=(3149-3009)+(14.9+0.1)+1225

=140+15+1225

=140+(15+1225)

=140+1240

=1380

故答案为:1380.

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