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一、用竖式计算。(除不尽的得数保留一位小数)
$13.95÷9.3$ $1.74×1.6$ $1.39÷1.7$
$2.65×3.3$ $13.14÷3.4$ $3.8×0.16$
$1.86×1.2$ $0.86÷8.1$ $0.77×0.49$
$19.56÷7.9$ $2.53×7.8$ $5.2÷1.5$
$0.28×3.2$ $2.5÷14.5$ $6.4×0.26$
$13.95÷9.3$ $1.74×1.6$ $1.39÷1.7$
$2.65×3.3$ $13.14÷3.4$ $3.8×0.16$
$1.86×1.2$ $0.86÷8.1$ $0.77×0.49$
$19.56÷7.9$ $2.53×7.8$ $5.2÷1.5$
$0.28×3.2$ $2.5÷14.5$ $6.4×0.26$
答案
一、1.5 2.784 0.8 8.745 3.9 0.608 2.232 0.1 0.3773 2.5 19.734 3.5 0.896 0.2 1.664
解析
13.95÷9.3=1.5
1.74×1.6=2.784
1.39÷1.7≈0.8
2.65×3.3=8.745
13.14÷3.4=3.9
3.8×0.16=0.608
1.86×1.2=2.232
0.86÷8.1≈0.1
0.77×0.49=0.3773
19.56÷7.9=2.5
2.53×7.8=19.734
5.2÷1.5≈3.5
0.28×3.2=0.896
2.5÷14.5≈0.2
6.4×0.26=1.664
1.74×1.6=2.784
1.39÷1.7≈0.8
2.65×3.3=8.745
13.14÷3.4=3.9
3.8×0.16=0.608
1.86×1.2=2.232
0.86÷8.1≈0.1
0.77×0.49=0.3773
19.56÷7.9=2.5
2.53×7.8=19.734
5.2÷1.5≈3.5
0.28×3.2=0.896
2.5÷14.5≈0.2
6.4×0.26=1.664
