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1. 计算。
$0.92×0.3= $
$0.125×0.08= $
$0.92×0.3= $
0.276
$0.25÷5= $0.05
$4.37×2=$8.74
$0.125×0.08= $
0.01
$2.57×0.4= $1.028
$43.8÷0.2= $219
答案
1. $0.92×0.3 = 0.276$
2. $0.25÷5=0.05$
3. $4.37×2 = 8.74$
4. $0.125×0.08=0.01$
5. $2.57×0.4 = 1.028$
6. $43.8÷0.2 = 219$
2. $0.25÷5=0.05$
3. $4.37×2 = 8.74$
4. $0.125×0.08=0.01$
5. $2.57×0.4 = 1.028$
6. $43.8÷0.2 = 219$
2. 用竖式计算。
$25.3÷11= $ $230÷0.46= $
$22.5÷1.5= $ $5.85÷3.9= $
$25.3÷11= $ $230÷0.46= $
$22.5÷1.5= $ $5.85÷3.9= $
答案
3. 求出下面各题的商。(得数保留一位小数。)
$48÷2.3$ $$ $9.78÷6.6$
$1.55÷3.8$ $$ $7.09÷0.52$
$48÷2.3$ $$ $9.78÷6.6$
$1.55÷3.8$ $$ $7.09÷0.52$
答案
$48 ÷ 2.3 \approx 20.9$；
$9.78 ÷ 6.6 \approx 1.5$；
$1.55 ÷ 3.8 \approx 0.4$；
$7.09 ÷ 0.52 \approx 13.6$。
$9.78 ÷ 6.6 \approx 1.5$；
$1.55 ÷ 3.8 \approx 0.4$；
$7.09 ÷ 0.52 \approx 13.6$。
