12.5×(0.78×0.8)
36.98×2.6+369.8×0.74
[78-(9.41+28.99)]-0.18
7.8+2.2×1.5
10.58﹣2.42﹣7.58
30﹣14÷2.5×4
7.3×7.3﹣7.3+7.3×3.7
8×(1.25+2.5)×4
9÷[(6.4+3.6)×1.8÷0.1]
1.5×102 5.5×17.3+2.7×5.5
4.8×99+4.8 15.8÷2.5÷4
① []
②4.6+7.68﹣1+2.32
③1.25×2.5×0.4×8
④9.5×20%+