1 .
既可以看成把
平均分成( ) 份,每份是多少;也可以看成
的( ) 是多少,所以![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febd39f0f09b828b31b1293201a60dfe.png)
( ) ×( ) 。
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6c6f8953dc1b62f45e0c8a22ab257e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/357821e0e5595eaf3028df63d47b2c58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/357821e0e5595eaf3028df63d47b2c58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febd39f0f09b828b31b1293201a60dfe.png)
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2 . ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14263116315a7590b693c20999fdb40c.png)
( ) ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6706fe00b4e231e62d9ecbec567d526b.png)
( )
。
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14263116315a7590b693c20999fdb40c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6706fe00b4e231e62d9ecbec567d526b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef12f7196c9443180ebdd4fdf2eb0689.png)
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3 . 世界上最小的洲是大洋洲,面积大约是900万平方千米。欧洲的面积是大洋洲的
,是北美洲的
。北美洲的面积是亚洲的
,是南极洲的
。南美洲的面积是北美洲的
,是非洲的
。分别算出各个洲的面积,并填入下表。
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53f3c9b8ef8ee06dc335e5dffa45931c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f16d09692f7b0fb5633964437202d21d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a36239d5cfcef4aca3bf5209ec7d76ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea928a9d8d28d3c80dc60a7fa107d26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b2a698891d42c70b597f0da4f215f09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eac97e6740365c85ad857aff85cefbe5.png)
亚洲 | 非洲 | 北美洲 | 南美洲 | 南极洲 | 欧洲 | 大洋洲 | |
面积/万平方千米 |
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4 . 找规律填数。
(1)
,
,
,( ) ,
,( ) ,( ) 。
(2)
,1,
,
,( ) ,( ) 。
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7294f5ae2a24ff42e84cd9773b2a7287.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d33adb74906403b0b00fcbd9fa691d8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3ffd5c35bba71ea54c28622b6cf505d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba8930e9a26a52a6b09740c1dddbd40e.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf31876698721a199c7c53c6b320aa86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b8503f4706b8321e4e79a87eadea84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31da7291140e430a11e2a10cc6cdefbb.png)
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5 .
吨=( ) 千克
平方米=( ) 平方分米
时=( ) 分
分=( ) 秒
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d41840af35e218a5639a2eff4d80b54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b2a698891d42c70b597f0da4f215f09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d33adb74906403b0b00fcbd9fa691d8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f16d09692f7b0fb5633964437202d21d.png)
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6 .
米=( ) 厘米
千克=( ) 克
时=( ) 分
分=( ) 秒
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d33adb74906403b0b00fcbd9fa691d8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21f5509bf3a18d6cef73c8c43eb982ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d266a04f3dc7483eddbc26c5e487db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cc0f4e88a98b2b25320e4bed691342b.png)
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7 . 在括号里填“>”“<”或“=”。
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59ed3ee491005a9ec4653d5903075ab4.png)
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/950013a46756f7948f92c11d4e17d53a.png)
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41179cc39078446b613f4eb8d00b2b21.png)
( ) ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cc0f4e88a98b2b25320e4bed691342b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a725d0f8bbbd072f87a7217baa4692f.png)
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7227ff51197e97395bda3c3e75d7ad7a.png)
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37e68c303c3dcc2e78d2eb1fd39f5b2c.png)
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59ed3ee491005a9ec4653d5903075ab4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa5a1a2ee471c67aa5264c0991d05421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/950013a46756f7948f92c11d4e17d53a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa5a1a2ee471c67aa5264c0991d05421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41179cc39078446b613f4eb8d00b2b21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cc0f4e88a98b2b25320e4bed691342b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a725d0f8bbbd072f87a7217baa4692f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa5a1a2ee471c67aa5264c0991d05421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7227ff51197e97395bda3c3e75d7ad7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa5a1a2ee471c67aa5264c0991d05421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37e68c303c3dcc2e78d2eb1fd39f5b2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cc0f4e88a98b2b25320e4bed691342b.png)
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8 .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4cda3b35c6ea72341fff6147d6cebe7.png)
(2)橘色方格相当于红色方格的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4cda3b35c6ea72341fff6147d6cebe7.png)
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9 . 数的运算,计算的道理其实是一样的,小明在学习时进行了对比,写出了四道算式:
165+192 8.53-4.21
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5dfbcdb2816e8869d5609b50ea26da4.png)
上面的算式中的“5”和“2”不可以直接相加减的是( ) ,在这个算式中5表示5个( ) ,2表示2个( ) 。从这些算式中,发现,整数、小数、分数加减法的算理是一样的,( ) 才可以相加减。
165+192 8.53-4.21
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/146f2014cd777e1ba5e33521d83cbd03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5dfbcdb2816e8869d5609b50ea26da4.png)
上面的算式中的“5”和“2”不可以直接相加减的是
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10 . 看算式,先填空再写算理相同点。________ 对齐,②________ 对齐,③________ 不变________ 相加。我发现:整数、小数、分数加减法计算方法的相同点都是:________ 。
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