文本内容:
五年级小数乘除法简便运算50题竞赛;姓名分数
2.5×
7.1×
416.12×99+
16.
125.2×
0.9+
0.
97.28×99+
7.
284.3×50×
0.226×
15.7+
15.7×
241.25-
0.125×
856.5×99+
56.
57.09×
10.8-
0.8×
7.
094.8×
100.
18.7×
17.4-
8.7×
7.
412.5×
0.4×
2.5×
89.5×
1016.81+
6.81×
990.25×
1.87×
404.4×
0.8-
3.4×
0.
82.37×
6.3+
2.37×
3.
72.5×
1.25×
0.
323.8×
10.
12.5×
3.8×
0.
047.6×
1053.8×
10.
10.25×39+
0.
250.125×7246×
0.33+54×
0.338×
5.27×
1.
256.85+
6.85×
990.25×185×
409.5×
9913.5×
0.
9812.5×
8.
87.05×
23.7+
7.05×
76.
30.125×
3.2×
2.5[
12.81-
1.5+
7.81]×
1.
88.7×
2.6+
6.4×
8.7+
8.7(
12.25+
0.85-
6.7)÷
82.65×
1.7+
1.35×
1.78×25×1.25×
164.04×
2545.55-(6.82+
15.55)
3.2×99+
3.
24.8×39+61×
4.
834.52-
17.87-
12.
232.5×65+45×
2.
59.45×101-
9.
450.125×
324.6×56+48×
4.6-
4.6×
43.6×
2.5+
7.5×
3.
64.3×
0.
96.5×
1024.57+
3.17+
3.43+
5.
833.25×99+
3.
251.8÷
252.5×
1.38×
1.450×
3.27×
0.
219.2×
0.54+
19.2×
0.46。