计算
|
| (1)2037-2037÷21 =2037-97 =1940; (2)4375+884÷26×25 =4375+34×25 =4375+850 =5225; (3)8.5+(5.6-4.8)×13 =8.5+0.8×13 =8.5+10.4 =18.9; (4)[9.2+0.8×(9-7.75)]÷0.4 =[9.2+0.8×1.25]÷0.4 =[9.2+1]÷0.4 =10.2÷0.4 =25.5; (5)(
=
=
=
(6)2.25×1.8+1.25×0.18 =2.25×1.8+0.125×1.8 =1.8×(2.25+0.125) =1.8×2.375 =4.275; (7)[17.1-17.1÷(3.1-2
=[17.1-17.1÷1]×599 =0×599 =0. |
关注公众号回复:奥数答案
即可免费获得密码查看答案
