①7.2×1.25
②0.46×1.9+0.54×1.9
③0.47×5×0.8
12.5×0.4×2.5×8
0.87×3.16+4.64
9.5×101
6.81+6.81×99
0.25×185×40
4.4×0.8- 3.4× 0.8
9.37×4×2.5
2.37×6.3+2.37×3.7
2.5×1.25×0.32
①8(x﹣6.2)=41.6
②15.8﹣ +14.2﹣
③0.125×76+12.5%×24
④ x+ x=30
⑤
⑥