六年级语数英(数学要经过）1又2分之1+2又6分之1+3又12分之1+4又20分之1+5又30分之1=如果你是鲜花,你就尽情开放；如果你是小鸟,你就展翅飞翔；如果你是,你就.英语：There is not(some)milk in the giass.The sign (not mean)"Do not touch".Mike (not do)his homework in the evening.It's January (one).数学要简便算法！
2019-05-23
六年级语数英(数学要经过）
1又2分之1+2又6分之1+3又12分之1+4又20分之1+5又30分之1=
如果你是鲜花,你就尽情开放；如果你是小鸟,你就展翅飞翔；如果你是___________,你就___________________.
英语：There is not_______(some)milk in the giass.
The sign _____________(not mean)"Do not touch".
Mike _________(not do)his homework in the evening.
It's January ____________(one).
数学要简便算法！
优质解答
数学：
=(3/1-3/2)+(13/2-13/3)+(37/3-37/4)+(81/4-81/5)+(151/5-151/6)
=3+(13/2-3/2)+(37/3-13/3)+(81/4-37/4)+(151/5-81/5)-151/6
=3+10/2+24/3+44/4+70/5-151/6
=3+5+8+11+14-151/6
=41-151/6
=246/6-151/6
=15又6分之5
语文：
如果你是骏马,你就阔步驰骋
英语：
any
doesn't mean
doesn't do
first
数学：
=(3/1-3/2)+(13/2-13/3)+(37/3-37/4)+(81/4-81/5)+(151/5-151/6)
=3+(13/2-3/2)+(37/3-13/3)+(81/4-37/4)+(151/5-81/5)-151/6
=3+10/2+24/3+44/4+70/5-151/6
=3+5+8+11+14-151/6
=41-151/6
=246/6-151/6
=15又6分之5
语文：
如果你是骏马,你就阔步驰骋
英语：
any
doesn't mean
doesn't do
first