29.6-4.96+3.84简算=

Question

29.6 ÷0.8-1.05×4此题可否简便计算 4.28+4.05×2.4此题可否简便计算要求有
29.6 ÷0.8-1.05×4此题可否简便计算
4.28+4.05×2.4此题可否简便计算要求有步骤

Answer 1

29.6 ÷0.8-1.05×4
=(32-2.4)/0.8-4.2
=40-3-4.2
=32.8
4.28+4.05×2.4
=4.28+(4+0.05)*2.4
=4.28+9.6+0.12
=4.4+9.6
=14