<span style=" font-weight:bold; ">一、我来算一算</span><span style=" font-weight:bold; ">。</span><span style=" font-weight:bold; ">(每空1分,共32分 ) </span><span style=" font-weight:bold; "></span><br><br><span>1、10个一千是( ),100个一百万是( )。</span><br><br><span>2、89°的角是( )角,100°的角是( )角。</span><br><br><span>3、两个因数的积是60,一个因数扩大为原来的3倍,另一个因数不变,积是( )。</span><br><br><span>4、如果两条直线相交成直角,就说这两条直线( ),其中一条直线叫做另一条直线的( ),这两条直线的交点叫做( )。</span><br><br><span>5、1个周角=( )个平角=( )个直角</span><br><br><span>6、45×80的积是( )位数,积的末尾有( )个0,</span><br><br><span>7、五百零四万零九百是( )位数,其中“5”、“4”、“9”分别在( )位.( ) 位和( )位,这个数写作( ),省略万后面的尾数是( )。</span><br><br><span>8、3时整时,钟面上的时针与分针所成的角是( )度,是( )角;6时整时,钟面上的时针与分针所成的角是( )度,是( )角。</span><br><br><span>9、</span><span>5个千亿和5个千组成的数写作( )。</span><br><br><span>10、</span><span>89□0039079≈90亿 □里可以填的数是( )。</span><br><br><span>11、在梯形里,( )的一组对边叫做梯形的底。常把较短的底叫做( ),较长的底叫做( ),不平行的一组对边叫做( )。</span><br><br><span>12、画角时,量角器的( )要和射线的( )重合,( )和( )重合。</span><br><br><span style=" font-weight:bold; ">二、我来辨一辨</span><span style=" font-weight:bold; ">。</span><span style=" font-weight:bold; ">(对的在括号里打“√”,错的打“×”,共8分)</span><span style=" font-weight:bold; "></span><br><br><span>1.个位、十位、百位……都是计数单位。……………………………………( )</span><br><br><span>2.</span><span> </span><span>平角就是一条直线,周角就是一条射线。……………………………… ( )</span><br><br><span>3.长方形是特殊的梯形。………………………………………………………( )</span><br><br><span>4.平行四边形的高有无数条。…………………………………………………( )</span><br><br><span>5由六百万和六百组成的数是6000600。……………………………………( )</span><br><br><span>6. 不相交的两条直线叫做平行线。………………………………………… ( )</span><br><br><span>7.两个因数相乘,积一定大于任何一个因数。………………………………( )</span><br><br><span>8.从一点引出两条直线做组成的图形叫做角。………………………………( )</span><br><br><span style=" font-weight:bold; ">三、我来选一选.</span><span style=" font-weight:bold; "> 。</span><span style=" font-weight:bold; ">( 选择正确答案的序号填在括号,共10分)</span><span style=" font-weight:bold; "></span><br><br><span>1、</span><span>不属于锐角的是( )。</span><br><br><span> </span><span>A、</span><span> </span><span>89°</span><span> </span><span>B、</span><span> 91°</span><span> </span><span>C、</span><span> </span><span>3</span><span>0</span><span>°</span><span> </span><span> </span><br><br><span>2、</span><span>直线与射线比较( )。</span><br><br><span> </span><span>A、</span><span>直线长</span><span> </span><span> </span><span> </span><span>B</span><span> 、</span><span>射线长</span><span> </span><span>C、</span><span>无法比较</span><br><br><span>3、</span><span>7时30分,时针和分针构成一个( )。</span><br><br><span>A:锐角 B:直角 C:钝角 </span><br><br><span style=" z-index:1; left:0px; "></span><span style=" z-index:1; left:0px; "></span><span style=" z-index:1; left:0px; "></span><span style=" z-index:1; left:0px; "></span><span>4、</span><span>下图中,共有( )个角。</span><div><span><br></span></div><div><span><img src="//www.szxuexiao.com/uploadimages/2012/1107/2012117154535.jpg?m=0.8430155101232231"><br></span></div><div><span><br></span></div><div><span>A、3 B、6 C、5</span><span> </span><br><br><span>5、</span><span>在乘法算式中一个因数不变,另一个因数扩大10倍,积( )</span><br><br><span>A、</span><span>扩大10倍</span><span> </span><span> </span><span> </span><span>B、</span><span>扩大100倍</span><span> </span><span>C、</span><span> </span><span>扩大20倍</span><br><br><span>6</span><span>、个、十、百、千、万……是( )</span><br><br><span>A、计数法 </span><span> </span><span>B、数位名称 </span><span> </span><span> C、计数单位</span><br><br><span>7、</span><span>在89□649≈90万中,□里可填的数字是( )。</span><br><br><span>A、0~4 B: 5~9 C: 任何一个数字 </span><br><br><span>8、在5和6中间添( )个0,这个数才能成为五亿零六。</span><br><br><span>A、6 </span><span> </span><span> B、7 </span><span> </span><span> C、8</span><br><br><span>9、</span><span>大于53万,小于54万的 自然数有( )个。</span><br><br><span> A、1万 B、0 C、无数</span><br><br><span>10、</span><span>最大的四位数和最小的五位数相差( )。</span><br><br><span>A、</span><span>1000</span><span> </span><span> </span><span> B 、1 </span><span> </span><span> C、</span><span>10</span><span> </span><br><br><span style=" font-weight:bold; ">四、计算题(24分)</span><span style=" font-weight:bold; "></span><br><br><span>1、直接写出得数。</span><br><br><span>14×50= 110×30= </span><span> </span><span> 380×20= </span><span> </span><span> 150×40=</span><br><br><span>24×8 = 600×4= </span><span> </span><span> 320 + 74 = 72÷8+7=</span><br><br><span>303×95≈ 423×301≈ 298×19≈ 182×309≈</span><br><br><span>2、竖式计算</span><br><br><span>760×90= 45×125= 496×35= </span><br><br><span>160×55= 77×134= 607×70= </span><br><br><span style=" font-weight:bold; ">五、操作题</span><span style=" font-weight:bold; ">。</span><span style=" font-weight:bold; ">(共8分)</span><span style=" font-weight:bold; "></span><br><br><span>1、从一条射线的端点开始,截取一条5厘米长的线段。(1分)</span><br><br><span>2、画出15°、120°、135°的角。(3分)</span><br><br><span>3、画一个上底4厘米,下底6厘米,高3厘米的梯形(4分)</span><br><br><span style=" font-weight:bold; ">六、解决问题</span><span style=" font-weight:bold; ">。</span><span style=" font-weight:bold; ">(共12分)</span><br><br><span> 1. 学校平均每月用电360度,照这样计算,学校一年共用电多少度?</span><br><br><span> 2. 一本故事书有193页,如果笑笑每天看8页,25天能看完吗?</span><br><br><span> 3. 司机王叔叔从厦门出发到福州送货,前3小时的速度是60千米/小时,后2小时的速度是50千米/小时,王叔叔一共行驶了多少千米?</span><br><br><span style=" z-index:1; left:0px; "></span><span> 4、小亮要从下面的长方形纸上剪下一个最大的正方形。剩下部分是什么图形?它的周长是多少厘米?</span><br><br><span>2厘米 <img src="//www.szxuexiao.com/uploadimages/2012/1107/201211715477.jpg?m=0.43427471350878477"></span><br> 5厘米 <br><br><span style=" font-weight:bold; ">七、附加题:(共10分)</span><br><br><span>1、99998+9998+998+98+8 (用简便方法计算。)</span><br><br><span>2、明明计算减法时粗心 ,错把减数587当成578,结果为89。正确的差应是多少?</span><br></div>
四年级上