问题 解答题 直接写出得数.29×6=0×34=34×10=49×38=47×4=47×34=23+34=0.25×25=ba×cb=a×ba=1a-1b=1a+1b=29×32×3=29×512×65= 答案 29×6=43,0×34=0,34×10=152,49×38=16,47×4=167,47×34=37,23+34=1712,0.25×25=0.1,ba×cb=ca,a×ba=b,1a-1b=b-aab,1a+1b=b+aab,29×32×3=1,29×512×65=19.