文本内容:
用简便方法计算
4.8+
8.63+
5.2+
0.
375.93+
0.19+
2.
811.76+
0.195+
3.
242.35+
1.713+
0.287+
7.
651.57+
0.245+
7.
436.02+
3.6+
1.
980.134+
2.66+
0.
8661.27+
3.9+
0.73+
16.
13.07-
0.38-
1.628-
2.45-
1.
5523.4-
0.8-
13.4-
7.
20.32×
4030.25×
3612.7-(
3.7+
0.84)
36.54-
1.76-
4.
547.6×
0.8+
0.2×
7.
60.85×
1990.25×
8.5×
41.28×
8.6+
0.72×
8.
612.5×
0.96×
0.
810.4-
9.6×
0.
350.8×(
4.3×
1.25)
3.12+
3.12×
9928.6×101-
28.6(
4.23+
6.17)×
0.
80.86×
15.7-
0.86×
14.
72.4×10214-
7.32-
2.
682.64+
8.67+
7.36+
11.
332.31×
1.2×
0.5(
2.5-
0.25)×
0.
49.16×
1.5-
0.5×
9.
163.6-
3.6×
0.
54.5÷
1.
84.2÷
3.5930÷
0.6÷
563.4÷
2.5÷
0.
44.9÷
1.
43.9÷(
1.3×5)(
7.7+
1.54)÷
0.
72.5×
2.
42.7÷
450.35×
1.25×2×
0.
832.4×
0.9+
0.1×
32.415÷
0.2570÷2815÷(
0.15×
0.4)
4.25÷
2.5×
9.9+
0.17。