36.1+17.99+23.9
40×20.23×2.5
0.89×15.6-5.6×0.89
1.2×2.5+0.8×2.5
1.25×4×2.5×8
15.8×69.3-68.3×15.8
①4×3.7×2.5
②1.3+4.7×0.9
③19.92+16.6﹣9.92
④8.2×6.4﹣6.4×7.2
⑤1.7+17×9.9
4×4.38×2.5
34.8-(14.8+3.4)
1.87+1.87×99
①9.37+4.83+5.17
②0.56+0.56×99
③0.4×9.2×2.5
④18.7×0.76-0.76×8.7