38÷19/40=( )
来源:学生作业帮 编辑:作业帮 分类:数学作业 时间:2024/08/29 00:45:42
38÷19/40=( )
能简便的就简便!最好是拿张纸算!
7/20×99+7/20
(1-3/4)×8/15+5/6
5/7×[(3/4-1/2)×4/5]
[(31/39-18/41)×0]÷12/13
能简便的就简便!最好是拿张纸算!
7/20×99+7/20
(1-3/4)×8/15+5/6
5/7×[(3/4-1/2)×4/5]
[(31/39-18/41)×0]÷12/13
38÷19/40=( 80 )
7/20×99+7/20
=7/20 *(99+1)
=7/20 *100
=35
(1-3/4)×8/15+5/6
=1/4 *8/15 +5/6
=8/60 +50/60
=58/60
=29/30
5/7×[(3/4-1/2)×4/5]
=5/7 *[(3/4 -2/4)*4/5]
=5/7*[1/4 *4/5]
=5/7 *1/5
=1/7
[(31/39-18/41)×0]÷12/13
=0÷12/13
=0
7/20×99+7/20
=7/20 *(99+1)
=7/20 *100
=35
(1-3/4)×8/15+5/6
=1/4 *8/15 +5/6
=8/60 +50/60
=58/60
=29/30
5/7×[(3/4-1/2)×4/5]
=5/7 *[(3/4 -2/4)*4/5]
=5/7*[1/4 *4/5]
=5/7 *1/5
=1/7
[(31/39-18/41)×0]÷12/13
=0÷12/13
=0
38÷19/40=( )
简便计算 (19/40+38)÷19
38=()%=()(填小数)=()分之19=()÷4
(45×95×38)÷(5×19×9)=?简便运算
简便计算38*43/8+19/5*36.25+19/1/2(38×8分之43+5分之19×36.25+19÷2分之1)
简便运算:(38×56×64)÷ (19× 28× 16)=?3333× 3334=?
一道简便运算4×60%+25分之19×40%+25分之19×60%==19÷5分之3÷19%==
______÷16=38
467÷38×498=?
40÷()=():20=0.8=()%
40 -------- =0.625=( )÷16=( )% ( )
(40分之19加38)÷19 4分之3×9分之2加0.75×9分之5 能简算的要简算