六
口算
班级:_____________ 姓名:_____________ 成绩:_____________
一、 直接写出结果(每题1分,共40分)
4912,,25%,, 16,8,20,27164
7332,,125%,, 0.6,20,500,121444179622,,,,50%,, 0.05,324347
33,,1414,14, 3.14,4,50%,30%,715
27,, 80,0.125,3.14,6,70%,5%,510
79,, 1.2,0.5,3.14,0.8,4.2,70%,18
772,, 3.14,3,2.19,9.01,75%,2.5,810
41102,,44%,, 3.14,8,1.5,0.03,5333
75122,,,87.5%, 3.14,10,30,0.75,786
2132,,,40%, 3.14,20, 6.8,0.24,857
二、 怎样简便就怎样算(每题3分,共30分)
(0.125,8,0.5),4 6.5,8,3.5,8,44
71125,,, 4,0.8,2.5,12.595911
21317317,,,,,4,,3, ,,2442415125,,
,,4371,, ,,,16.5,5,1.29,0.2,0.06,20%,,,,94164,,,,
4421,,131,,,,,,, 1,,, ,,,,,,4845532,,,,,,
三、 解方程(每题3分,共30分)
1521x,80%,, 40%x,18,503x,60%x,4.325226
1x,25%,100.8,(x,0.4),8 7x,4.2,5.62
11150%x,,15x,x,15 3.2x,4,3,52323
x,52%x,3.2,15%