一、口算。
$6.5×0.3=$
$0.6 - 0.24=$
$1.5×0.7=$
$0.405÷0.3=$
$12.5×80=$
$0.6 - 0.34=$
$0.78 + 2.2=$
$3.88 - 2.9=$
$6.5×0.3=$
1.95
$10÷0.1=$100
$0.96÷0.3=$3.2
$0.6 - 0.24=$
0.36
$6×3.5=$21
$0.65÷0.5=$1.3
$1.5×0.7=$
1.05
$0.28 + 0.82=$1.1
$0.7÷1.4=$0.5
$0.405÷0.3=$
1.35
$2.25÷1.5=$1.5
$0.3×0.08=$0.024
$12.5×80=$
1000
$16.2÷0.06=$270
$5.2÷0.13=$40
$0.6 - 0.34=$
0.26
$1.8×0.5=$0.9
$10.1×30=$303
$0.78 + 2.2=$
2.98
$12÷0.12=$100
$0.64×5=$3.2
$3.88 - 2.9=$
0.98
$0.87÷0.3=$2.9
$0.35×200=$70
答案
一、1.95 100 3.2
0.36 21 1.3
1.05 1.1 0.5
1.35 1.5 0.024
1000 270 40
0.26 0.9 303
2.98 100 3.2
0.98 2.9 70
0.36 21 1.3
1.05 1.1 0.5
1.35 1.5 0.024
1000 270 40
0.26 0.9 303
2.98 100 3.2
0.98 2.9 70
二、用竖式计算。
$5.1 - 1.78$ $2.38×0.15$ $0.841÷0.58$
(得数保留整数)
$4.37 + 12.49$ $1.824÷0.76$ $4.56×0.017$
(得数保留两位小数)
$5.1 - 1.78$ $2.38×0.15$ $0.841÷0.58$
(得数保留整数)
$4.37 + 12.49$ $1.824÷0.76$ $4.56×0.017$
(得数保留两位小数)
答案
二、3.32 0.357 1
16.86 2.4 0.08
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