1、六年级数学上学期口算竞赛题班级 姓名 对题数 错题数 计划做题所需时间: 20 分钟 一、口算(每小题 0.5 分)2 = 0.25= = 7543372 = = = 84371522015+0.6= +0.25= +0.5= 25 4 = 0.32= 12.58= 721 = = 0.2 = 583653 = 4131865102 + = 76496(1+ )= 0.375 32925474= 9 16310104= 1 = 3+20=27 705 + + = 3154 3255= = 5+ =22458415+ = 136 = 0.84= 4 6233= 0.75 = 205=3 5 2
2、3.70.1% =910651201.8= 3 15 095352.12.09 0.450.37 4%8+ ( ) = 4134133241 = = + = 57278208.3-3.3 0.4 60=53157 28 = 9y4y 7381412.8 = 21%2= 10 10= 4 101.250.8 0.4 = 8.1 =5114 = 542333315100 = 60= 3.636 1571 = 8 0=25 35 45( ) 10 = 4665327254 11 1 3598 5 987 1620.28b0.52b 2- 24 13= 8350.1 15 87165283632:16
3、 0.125:0.3 : 127830 = 6515475 = 12 = 0.2 =1093283169 1250.008 =4350.23+177%= 4.90.07= =2157.2 + 10 2= ( )54 89737.5+2.5 4 5 : 49 59 541 0 = 0.625 = 13629635 = 5- 5836192 = 79 1.258=68779 = 0.375 = 734581236130.8 25% 51315 48.44.2= 812.5%= =3 0.130%= 26 = 9183 12 0.125 64% 49%37%5081 88 451232413232
4、0.36750 7798= 0.1250.8= 1085% 34 4138二、解方程:(共 8分,每题 2分)40%36 (140%) 109 0.12 (215) 0.43001261三、计算下面各题,能简算的要简算:(共 12分,每题 2分)0.875 18(3 ) 0.251.2532097927892(93 7.3) 0.75247775% (2 ) 6549431095376四、列综合算式或方程解答:(共 6分,每题 2分)1、一个数的 54%与 54的 30%相等,这个数是多少?2、甲数是 36,比乙数的 40%多 6,乙数的 是多少?433、12 加上 除以 的商,所得的和再除以 ,结果是多少?512610