一、口算。
$0.75×0.6=
$13.35 - 4.18=
$3.6÷0.09=
$0.34×0.5=
$6.8÷17=
$6.23 - 4.2=
$7.5÷1.5=
$6.3÷0.21=
$0.75×0.6=
0.45
$ $0.43×200=86
$ $2.4×0.6=1.44
$$13.35 - 4.18=
9.17
$ $1.35×0.3=0.405
$ $9.9÷0.3=33
$$3.6÷0.09=
40
$ $6.1 - 5.9=0.2
$ $13.35 - 4.68=8.67
$$0.34×0.5=
0.17
$ $2.2×0.6=1.32
$ $0.56÷0.4=1.4
$$6.8÷17=
0.4
$ $3.1 + 7.9=11
$ $4.25×2=8.5
$$6.23 - 4.2=
2.03
$ $1.8×20=36
$ $3.6÷0.12=30
$$7.5÷1.5=
5
$ $0.396÷0.3=1.32
$ $0.47 + 0.73=1.2
$$6.3÷0.21=
30
$ $1.5÷0.75=2
$ $3.56÷0.2=17.8
$答案
0.45 86 1.44
9.17 0.405 33
40 0.2 8.67
0.17 1.32 1.4
0.4 11 8.5
2.03 36 30
5 1.32 1.2
30 2 17.8
9.17 0.405 33
40 0.2 8.67
0.17 1.32 1.4
0.4 11 8.5
2.03 36 30
5 1.32 1.2
30 2 17.8
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
5.63 430 69.4
7.315 5.365 77
7.315 5.365 77
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