五上笔算乘法50题
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五年级上册笔算乘法练习
要求:先估算,将估算结果写在算式上方,再计算并验算。
(提示:部分习题可应用积不变规律列竖式计算)
6.58
×
71.5
=<
/p>
10.56
×
90.6
=
p>
0.125
×
7453
=
3080
×
0.914
=
756.3
×
4.86
=
×
23.7
=
×
4.68
=
×
31.28
=
0.608
6.724
0.546
40.076
×
0.65<
/p>
=
98000
×
37.65
=
0.1856
×
3.14
=
0.807
0.573
×
7680
=
7.69
3600
×
0.6458
=
6.28
×
75.8
=
×
3.009
=
×
0.875
=
p>
7.16
×
80.0839
=
607.8
×
0.546
=
28.36
×
57.09
=
6.28
864
×
0
.2787
=
301.25
0.865
×
62800
=
1570
×
98.75
=
×
6400
=
×
76.54
=