一、口算。
$0.46÷4.6=$
$0.125÷0.25=$
$0.55×4=$
$0.83-0.62=$
$3.2×0.9=$
$1.05÷0.7=$
$1.08×0.8=$
$0.9-0.46=$
$0.46÷4.6=$
0.1
$4×0.25=$1
$2.56-0.37=$2.19
$0.125÷0.25=$
0.5
$0.83+1.17=$2
$3.4×0.2=$0.68
$0.55×4=$
2.2
$1.32×0.5=$0.66
$6+3.9=$9.9
$0.83-0.62=$
0.21
$1.05×0.6=$0.63
$4.2×30=$126
$3.2×0.9=$
2.88
$3.3÷0.11=$30
$8.5÷0.17=$50
$1.05÷0.7=$
1.5
$4.5×0.4=$1.8
$2.7+5=$7.7
$1.08×0.8=$
0.864
$1.72+0.4=$2.12
$4.8÷0.06=$80
$0.9-0.46=$
0.44
$0.56÷0.8=$0.7
$3.8+0.03=$3.83
答案
一、0.1 1 2.19
0.5 2 0.68
2.2 0.66 9.9
0.21 0.63 126
2.88 30 50
1.5 1.8 7.7
0.864 2.12 80
0.44 0.7 3.83
0.5 2 0.68
2.2 0.66 9.9
0.21 0.63 126
2.88 30 50
1.5 1.8 7.7
0.864 2.12 80
0.44 0.7 3.83
二、用竖式计算。
$62.2-3.19$ $0.045×6.4$ $24.8÷1.6$
$8.77+1.24$ $1.368÷0.24$ $71.2×3.4$
$62.2-3.19$ $0.045×6.4$ $24.8÷1.6$
$8.77+1.24$ $1.368÷0.24$ $71.2×3.4$
答案
二、59.01 0.288 15.5
10.01 5.7 242.08
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