下面各题,怎样简便就怎样算. ①0.276×2.5+2.5×2.724 ②1.25×32×0
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解决时间 2021-02-16 01:02
- 提问者网友:沦陷
- 2021-02-15 04:55
下面各题,怎样简便就怎样算. ①0.276×2.5+2.5×2.724 ②1.25×32×0
最佳答案
- 五星知识达人网友:旧脸谱
- 2021-02-15 05:36
①0.276×2.5+2.5×2.724, =2.5×(0.276+2.724), =2.5×3, =7.5; ②1.25×32×0.25, =1.25×8×4×0.25, =(25×8)×(4×0.25), =200×1, =200; ③17.47-7.57-2.43, =17.47-(7.57+2.43), =17.47-10, =7.47; ④3.21+9.46+6.79, =(3.21+6.79)+9.46, =10++9.46, =19.46. |
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