0.5×1.6×12.5 23.5×4.6+2.35×54 18.9-7.5÷(0.44+1.06)
0.5×1.25×1.6
7.4×1.5+1.5+1.6×1.5
12.6×4.2÷1.4
(34.7-6.2×2.4)÷1.2(得数保留两位小数)
①42﹣18.48÷4.2
②(0.6+1÷2.5)×7.4
③125×4×0.8×2.5
④4.125×5.4+2.6×4.125
0.82×99+0.8 24.5+5.5÷5 8.3-1.3×(3.75÷1.5)