1.直接写出得数。(每题2★)
0.05×100=
12×50=
71×101−71=
220×30=
11.7+1.17=
5.6÷100×0=
0.23+1.35=
0.96−0.42=
3×8÷3×8=
9−0.11=
366÷6=
6×13×5=
320÷40=
0÷104=
472−(72−26)=
0.05×100=
12×50=
71×101−71=
220×30=
11.7+1.17=
5.6÷100×0=
0.23+1.35=
0.96−0.42=
3×8÷3×8=
9−0.11=
366÷6=
6×13×5=
320÷40=
0÷104=
472−(72−26)=
答案
1.
0.05×100=5
12×50=600
71×101−71=7100
220×30=6600
11.7+1.17=12.87
5.6÷100×0=0
0.23+1.35=1.58
0.96−0.42=0.54
3×8÷3×8=64
9−0.11=8.89
366÷6=61
6×13×5=390
320÷40=8
0÷104=0
472−(72−26)=426
0.05×100=5
12×50=600
71×101−71=7100
220×30=6600
11.7+1.17=12.87
5.6÷100×0=0
0.23+1.35=1.58
0.96−0.42=0.54
3×8÷3×8=64
9−0.11=8.89
366÷6=61
6×13×5=390
320÷40=8
0÷104=0
472−(72−26)=426
2.列竖式计算。(每题4★)
219×33=
432÷27=
689÷53=
219×33=
432÷27=
689÷53=
答案
2.
219×33=7227
432÷27=16
689÷53=13
(竖式略)
219×33=7227
432÷27=16
689÷53=13
(竖式略)
3.计算下面各题,怎样简便就怎样算。(每题4★)
8.55+3.56−2.33+1.44
140×[(715−440)÷5]
86×57−57×53
139+140+141+142
8.55+3.56−2.33+1.44
140×[(715−440)÷5]
86×57−57×53
139+140+141+142
答案
3.
8.55+3.56−2.33+1.44=11.22
140×[(715−440)÷5]=7700
86×57−57×53=1881
139+140+141+142=562
8.55+3.56−2.33+1.44=11.22
140×[(715−440)÷5]=7700
86×57−57×53=1881
139+140+141+142=562
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