问题
解答题
列竖式计算下面各题.
(1)73.1×2.5=
(2)0.7×50.6=
(3)12.6×2.65=
(4)5.16×3.5=
(5)0.26×0.45=
(6)2.01×3.8=
(7)10.2×0.25=
(8)5.06×6.5=
(9)0.38×7.09=
答案
(1)73.1×2.5=182.75;
.36 5 5
146 2
.182.7 5
(2)0.7×50.6=35.42;
5 0.6
.35.4 2
(3)12.6×2.65=33.39;
1 2.6
.6 3 0
7 5 6
25 2
.33.3 9 0
(4)5.16×3.5=18.06;
5.1 6
.2 5 8 0
15 4 8
.18.0 6 0
(5)0.26×0.45=0.117;
0.26
.1 30
104
.0.11 70
(6)2.01×3.8=7.638;
2.0 1
.1 6 0 8
6 0 3
.7.6 3 8
(7)10.2×0.25=2.55;
1 0.2
×0.2 5
.5 1 0
2 0 4
.2.5 5 0
(8)5.06×6.5=32.89;
5.0 6
.2 5 3 0
30 3 6
.32.8 9 0
(9)0.38×7.09=2.6942.
7.09
.5 6 72
2 1 27
.2.6 9 42