第75页

信息发布者:
16.3
1.63
+
2.37
-
0.6
+
0.4
-
0.36
+
=53.75-3.75-6.5
=50-6.5
=43.5
=(175.25+6.75)-(33.1+66.9)
=182-100
=82
=60-(24.69+5.31)
=60-30
=30
=(18.62+1.38)+28
=20+28
=48
37.50+8.50+2.50=48.5(元)
答:一共需要48.5元。