31点8+2点4×1点五的简便运算

31点8+2点4×1点五的简便运算
2024-11-08 06:32:07
推荐回答(2个)
回答(1):

31点8+2点4×1点五
=31.8+2.4x5x0.3
=31.8+12x0.3
=31.8+3.6
=35.4

回答(2):

31.8+2.4*0.5+2.4*1=31.8+1.2+2.4=35.4