一、口算。
$0.42÷0.5= $
$0.27÷0.3= $
$5.2÷2.6= $
$16.2÷0.06= $
$26.4÷0.2= $
$25.5÷0.5= $
$16.2÷0.4= $
$2.1÷0.5= $
$0.42÷0.5= $
0.84
$6÷5= $1.2
$0.85÷0.5= $1.7
$0.27÷0.3= $
0.9
$5.8÷58= $0.1
$0.21÷0.3= $0.7
$5.2÷2.6= $
2
$81÷0.09= $900
$0.77÷0.11= $7
$16.2÷0.06= $
270
$100÷0.01= $10000
$0.038÷0.2= $0.19
$26.4÷0.2= $
132
$32÷80= $0.4
$10.8÷9= $1.2
$25.5÷0.5= $
51
$100÷0.1= $1000
$82.5÷5= $16.5
$16.2÷0.4= $
40.5
$7.2÷0.09= $80
$12÷0.75= $16
$2.1÷0.5= $
4.2
$3.8÷0.19= $20
$7.2÷0.012= $600
答案
一、0.84 1.2 1.7
0.9 0.1 0.7
2 900 7
270 10000 0.19
132 0.4 1.2
51 1000 16.5
40.5 80 16
4.2 20 600
0.9 0.1 0.7
2 900 7
270 10000 0.19
132 0.4 1.2
51 1000 16.5
40.5 80 16
4.2 20 600
二、用竖式计算。
$5.85÷0.15$ $17.92÷64$ $25÷0.625$
$3.1÷0.25$ $21.17÷0.73$ $5.64÷1.2$
$5.85÷0.15$ $17.92÷64$ $25÷0.625$
$3.1÷0.25$ $21.17÷0.73$ $5.64÷1.2$
答案
二、39 0.28 40
12.4 29 4.7
12.4 29 4.7
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