My room is small, but comfortable and clean.
Take the door, on the left is a bookcase. The above is my dad's book, and below is my "private property" in bookcase pretend I most like to watch book at ordinary times. What little sunflower, extracurricular reading, contemporary elementary, hundred thousand whys... It's full of beautiful things in eyes, dazzling. In spite of large Numbers, they still according to the height of a placed very neatly.
The right of the bookcase is a small bed. Every night, I lay there to sleep, do a dream.
To the other side of the bed is my desk. There are my keyboard on the desk, and I often read the book. Every school, it's "people" will increase, because above filled up with my school things, and my homework. Bed is a window. The sun shine into my room through the window, make the room warm and bright.
Sofa is next to the desk, the sofa has been neatly folded my clothes, and my family "" toys.
Chest and sofa is an inseparable friends, my family moved to either, they were always together. The big wardrobe, which is full of clothes when I was a kid.
My room is not big, but there is full of laughter every day.
÷进率
5角=()元。想:把“角”改成“元”,要()进率(),只要把5的小数点向左移动()位。
0。5元=()角。想:把“元”改成“角”,要()进率(),只要把5的小数点向右移动()位。
在括号里填上适当的单位名称,使等号成立。
(1)13()+11()=1()
(2)40()+20()=1()
(3)30()+70()=1()
(4)200()+800()=1()
l like my bedroombest . ln my bedroom, there is a bed, a bedside table, two desks ,a armchair ,a bookcase and a lamp . On the bookcase there are a lots of dollsand taddy bears.Next to the bed , there is a bedside table and there is a lamp on it .Between the bedside table and the bookcase there is a deak . Opposite the bookcase there is a desk to . beside the desk there is a armchair . I love my bedroom.
I have a lovely bedroom. It is small but clean and beautiful. The wall is light green and the floor is white. There is a bed in my bedroom, it is really comfortable. I sleep with it every night. And there is a small sofa near my bed, I always read books on it. There is also a desk in my room, I do my homework on it every evening. Near the desk, there is a shelf. There are many books on the shelf. You can borrow books from me if you like reading.
My bedroom is so good that I like it very much.
我有一间可爱的卧室。它很小但却干净漂亮。房间的墙壁是浅绿色的,地板是白色的。我的卧室有一张床,它真的很舒服。每天晚上我都谁在这张床上。我的`床边还有一张小沙发,我经常躺在上面看书。我的房间还有一张书桌,每天晚上我都在上面做作业。书桌旁边有一个书架,书架上面有很多书。如果你喜欢阅读的话你可以想我借书。
我的卧室很漂亮,我很喜欢我的卧室。
小数点后改成低级数
⑤单名数之间的转换:×进率
A、1km=()m1m=()dm1dm=()cm1cm=()mm
B、1m=()cm1m=()mm1dm=()mm
A、1m2=()dm21dm2=()cm21cm2=()mm2
B、1m2=()cm21m2=()mm21dm2=()mm2
A、1t=()kg1kg=()g1元=()角1角=()分
B、1t=()g1元=()分
②知道147cm、1m47cm、1。47m,它们之间的联系和区别。
这三个数量表示的多少都是一样的。
只不过单位不一样。147厘米和1。47米只有一个单位。像这样只有一个单位的`名数叫做()。
1米47厘米有两个单位。像这样有两个获两个以上单位的名数叫()。在这个复名数中,米是()。厘米是()。
③复名数转化成单名数。
(在复名数中,高级单位前面的数不动,只需要把低级单位前面的数除以进率,最后将结果与高级单位数合并。也可以把低级单位的数不动,用高级单位数乘进率,再把结果与低级单位数合并。)
④小数转化成复名数:小数点前是高级数
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