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一、口算。
$2.2×0.6=$
$3.1 + 7.9=$
$1.8×20=$
$0.396÷0.3=$
$1.5÷0.75=$
$0.43×200=$
$1.35×0.3=$
$6.1 - 5.9=$
$2.2×0.6=$
1.32
$6.23 - 4.2=$2.03
$0.56÷0.4=$1.4
$3.1 + 7.9=$
11
$7.5÷1.5=$5
$4.25×2=$8.5
$1.8×20=$
36
$6.3÷0.21=$30
$3.6÷0.12=$30
$0.396÷0.3=$
1.32
$0.75×0.6=$0.45
$2.4×0.6=$1.44
$1.5÷0.75=$
2
$13.35 - 4.18=$9.17
$9.9÷0.3=$33
$0.43×200=$
86
$3.6÷0.09=$40
$13.35 - 4.68=$8.67
$1.35×0.3=$
0.405
$0.34×0.5=$0.17
$3.56÷0.2=$17.8
$6.1 - 5.9=$
0.2
$6.8÷17=$0.4
$0.47 + 0.73=$1.2
答案
一、1.32 2.03 1.4
11 5 8.5
36 30 30
1.32 0.45 1.44
2 9.17 33
86 40 8.67
0.405 0.17 17.8
0.2 0.4 1.2
11 5 8.5
36 30 30
1.32 0.45 1.44
2 9.17 33
86 40 8.67
0.405 0.17 17.8
0.2 0.4 1.2
二、用竖式计算。
$4.75 + 0.88$ $54.18÷0.126$ $8.46×8.2$
(得数保留一位小数)
$13.79 - 6.475$ $0.145×37$ $183.6÷2.4$
(得数保留整数)
$4.75 + 0.88$ $54.18÷0.126$ $8.46×8.2$
(得数保留一位小数)
$13.79 - 6.475$ $0.145×37$ $183.6÷2.4$
(得数保留整数)
答案
二、5.63 430 69.4
7.315 5.365 77
