2005×3/8−1949÷22/3+33/4×10.4.

问题描述:

2005×

3
8
−1949÷2
2
3
+3
3
4
×10.4.

2005×

3
8
−1949÷2
2
3
+3
3
4
×10.4,
=2005×
3
8
-1949×
8
3
+3
3
4
×10.4,
=(2005-1949)×
8
3
+3
3
4
×10.4,
=56×
8
3
+3
3
4
×10.4,
=21+39,
=60.