2014年人教版七年级下册英语练习册上带的卷子答案
推荐回答(1个)
1.某工厂6月份计划用煤54吨,前半月平均每天烧煤1.6吨,剩下的煤如果每天烧1.5吨,还可以烧多少天?
2.“三跳”活动中,参加跳绳的人数是踢毽人数的3倍,已知跳绳人数比踢键子人数多18人,跳绳和踢毽子的同学各有多少人?
3.商店有一批运动衣,第一天卖出35件,第二天卖出28件,第二天比第一天少收入168元,每件运动衣售价多少元?
4.缝纫组里有布27.8米,计划先做8套成人衣服,每套用布2.6米,剩下的布再做成儿童服装,按每套用布1.4米计算,能做成儿童服装多少套?
5.小明看一本450页的书,前3天每天看30页,余下的每天看40 页,看完这本书还需多少天?
6.一辆汽车从甲地开往乙地,前2小时共行120千米,后3小时共行210千米,平均每小时行多少千米?
7.一个筑路队有13人,3天修路9.75千米,如果每人的工作效率不变,15人5天修路多少千米?
8.同学们为灾区捐献衣服,第一次捐了890件,第二次捐了950件,两次一共捐了多少件?
9.学校举行跳绳比赛,四年级组跳了800个,五年级组跳了950个,五年级组比四年级组多跳了多少个?
10.学校举行跳绳比赛,四年级组跳了800个,五年级组比四年级组多跳了150,五年级组跳了多少个?
追问:
还有呢?有没有关于圆的或者是比的?
回答:
1.我校种树,杨树占总数的5/9,其余的种柳树。后来又买来20棵杨树。这是杨柳树的比是15:11。学校共种树多少棵?
2.公园买来三种树苗。其中松树占总数的30%,杨树与柳树的比是2:5,已知柳树比松树多40棵,一共买来多少树苗?
3.甲乙丙三个村合修一条长1000千米的水渠,修成后受益面积。甲与丙村的比是3:1,乙村的3/4等于甲村的2/3。各村按受益面积分配。各应修多少千米?
4.我校有学生840人。其中4、5、6年级占总数的2/3.已知四与六年级人数的比是3:5。五年级的3/4等于四年级的2/3。四年级有多少人?
5.一件工作,计划10天完成,实际8天完成,工作时间缩短了几分之几?工作效率提高了几分之几?
46.1根木料,第一次用去全长的1/3,第二次甩去3.5米,剩下的与全长的比是1:4。这根木料还剩多少米
6.某筑路队筑一段路。第一天修筑了全长的1/5多10米,第二天修筑了全长的2/7,还剩53米没有修完。这段路全长多少米
追问:
有没有关于圆的 多一些???
回答:
1.大圆半径是小圆的3倍,大圆的面积是84.78平方厘米,则小圆面积为多少平方厘米?
2.大圆半径是小圆半径的2倍,大圆面积比小圆面积多12平方厘米,小圆面积是多少平方厘米?
3.圆形花池的半径是6m,在花池的周围修一条1m宽的路,路的面积是多少平方米?
4.有一个圆形的铁皮,中间挖去一个正方形,正方形的面积是5平方厘米,圆的半径恰好是正方形的边长,圆的面积比正方形面积大多少平方厘米
5.在一个长为6cm,宽为4cm的长方形里剪一个最大的圆,那么这个圆的面积是多少?
6,甲圆的半径为15.6厘米,乙圆的直径是62.4厘米,甲圆的周长是乙圆的几分之几
7,压路机的碾轮直径是15厘米,如果它以每分钟12圈的速度前进,那么每小时可以压路多少米
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