学校 姓名 班级___________ 座位号 ……装…………订…………线…………内…………不…………要…………答…………题……
一、判断题,对的填“√”,错的填“×”(8分)
1、a2和2a表示的意义相同。 ( )
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2、3.675675675是循环小数。 ( ) 3、从上面、正面、左面看到的图形都相同。 ( )4、面积相等的两个三角形一定可以拼成一个平行四边形。 ( )
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This article includes some parts, including text, pictur
This article includes some parts, including text, pictur5、0.05乘一个小数,所得的积一定比0.05小。 ( ) 6、小数除法的商都小于被除数。 ( ) 7、含有未知数的等式叫做方程。 ( ) 8、平行四边形的面积是与它等底等高的三角形面积的2倍。 ( )
二、填空,把正确答案填写在括号中(每空1分,共24分)
This article includes so me parts, including text, pictuThis article includes some parts, including text, pictur
This article includes some parts, including text, pictur
This article includes some parts, including text, pictur
This article includes some parts, including text, pictur
1、根据18×64=1152,可知1.8×0.64=( ),11.52÷6.4=( )。 2、686.8÷0.68的商的最高位在( )位上,结果是( )。
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3、一个两位小数“四舍五入”保留整数取得近似值是3,这个数最小可能是( ),最大可能是( )。
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4、34.864864 …用简便方法表示是( ),保留三位小数约是( )。 5、不计算,在○里填“>”“<”或“=”。
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0.5÷0.9 ○0.5 0.55×0.9 ○0.55
This article includes some parts, including text, pictur 36÷0.01○3.6×100 7.3÷0.3○73÷3
6、小明今年a岁,爸爸的年龄比他的3倍大b岁,爸爸今年( )岁。 7、一本字典25.5元,孙老师拿150元钱,最多能买( )本。
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This article includes some parts, including text, pictur8、 0.62公顷=( )平方米 2时45分=( )时
2.03公顷=( )公顷( )平方米 0.6分=( )秒
1
9、一个直角三角形,直角所对的边长是10厘米,其余两边分别是8厘米和6厘米,直角所对边上的高是( )厘米。
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10、一个盒子里有2个白球、3个红球和5个蓝球,从盒中摸一个球,可能有( )种结果,摸出( )球的可能性最大,可能性是( )。
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11、某学校为每个学生编排借书卡号,如果设定末尾用1表示男生,用2表示女生,如:974011表示1997年入学、四班的1号同学,该同学是男生,那么1999年入学一班的29号女同学的借书卡号是( )
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This article includes some parts, including text, pictu三、计算题(32分)
This article includes some parts, including text, pictu1、直接写出得数。(每题0.5分,共5分)
3.5×0.2= 10÷0.5= 6×0.25= 0.63÷0.9= 1.8×0.4=
0.99÷0.01= 1.2×4= 3.9×0.01= 2.33×1.2= 1.25×0.8=
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This article includes some parts, including text, pictur2、列竖式计算。(带*的要验算,带△的得数保留两位小数。)(12分) 3.06×4.5= * 40.8÷0.34
0.38×3.2 △16.65÷3.3
3、解方程。(9分)
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X-1.5=12.9 9x+5x=8.4 6.8+3.2X=14.8
2
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4、列式计算。(共6分,每小题3分)
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This article includes some parts, including text, pictur(1)3.6减去0.8的差乘1.8与2.05的和,积是多少?
(2)一个数的7倍减去这个数自己,差是42.6,求这个数。
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四、选择题,把正确答案序号填写括号中(每题1分,共6分)
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1、每个空瓶可以装2.5千克的色拉油,王老师要把25.5千克的色拉油装在这样的瓶子里,至少需要( )个这样的瓶子。
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A、10 B、11 C、12 2、下面两个式子相等的是( )
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A、 a+a和2a B、 a×2和a2 C、 a+a和a2 3、下列算式中与99÷0.03结果相等的式子是( )。
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A、9.9÷0.003 B、990÷0.003 C、9900÷30
4、一个积木块组成的图形,从正面看是 从侧面看是 ,这个积木块有( )个。 A、4 B、6 C、不一定
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5、右图中,边长相等的两个正方形中,画了甲、乙两个三角形(用阴影表示), 它们的面积相比( )
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A、甲的面积大 B、乙的面积大 C、相等 6、把一个平行四边形拉成一个长方形(边长不变),它的面积( )。
A、比原来大 B、比原来小 C、与原来一样大
3
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This article includes some parts, including text, pictur
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