题目内容
| 直接写出得数 (1)40× | (2) | (3) | (4) |
| (5) | (6)4.8÷12%= | (7)39+26= | (8)0.32= |
| (9)3-2.7= | (10)52= | (11)0.54÷0.9= | (12)1-4%= |
| (13)280÷35= | (14)5.4÷0.27= | (15) | (16)30×10%-0.3= |
| (17)12×4÷12×4= | (18)2 | (19)383-98= | (20)26.26÷26= |
| (21)4.57+6.43= | (22)3.14×32= | (23)7.9×11-7.9= | (24)0.1×30%= |
| (25)2÷1%-2= | (26)3.6÷0.036= | (27)7÷19= | (28)3.7×0.1%= |
| (29)0.99×9+0.99= | (30)100×0.1%= |
| 解:(1)40× | (2) | (3) | (4) |
| (5) | (6)4.8÷12%=40; | (7)39+26=65; | (8)0.32=0.09; |
| (9)3-2.7=0.3; | (10)52=25; | (11)0.54÷0.9=0.6; | (12)1-4%=0.96; |
| (13)280÷35=8; | (14)5.4÷0.27=20; | (15) | (16)30×10%-0.3=2.7; |
| (17)12×4÷12×4=16; | (18)2 | (19)383-98=285; | (20)26.26÷26=1.01; |
| (21)4.57+6.43=11; | (22)3.14×32=28.26; | (23)7.9×11-7.9=79; | (24)0.1×30%=0.03; |
| (25)2÷1%-2=198; | (26)3.6÷0.036=100; | (27)7÷19= | (28)3.7×0.1%=0.0037; |
| (29)0.99×9+0.99=9.9; | (30)100×0.1%=0.1. |
分析:根据整数、小数、分数四则混合运算的运算顺序,按照它们的计算法则,能简算要简算,直接进行口算.
点评:此题考查的目的是熟练掌握整数、小数、分数四则混合运算的运算顺序和它们的计算法则,提高口算能力,提高做题的正确率.
练习册系列答案
相关题目