| 简便计算。 | ||||||
|
(1)![]() = ![]() =11.2 | (2)![]() =3.4- ![]() =2.4 | (3)2.5×32×12.5 =2.5×4×8×12.5 =(2.5×4)×(8×12.5) =10×100 =1000 |
| (4)3.4×5.6+5.6×6.6 =5.6×10 =56 | (5)10.2 ×43 =(10+0.2)×43 =430+8.6 =438.6 |
编辑:chaxungu时间:2026-04-27 13:19:06分类:小学数学题库
| 简便计算。 | ||||||
|
(1)![]() = ![]() =11.2 | (2)![]() =3.4- ![]() =2.4 | (3)2.5×32×12.5 =2.5×4×8×12.5 =(2.5×4)×(8×12.5) =10×100 =1000 |
| (4)3.4×5.6+5.6×6.6 =5.6×10 =56 | (5)10.2 ×43 =(10+0.2)×43 =430+8.6 =438.6 |