61万6161×39-39万3939×61的简便运算

61万6161×39-39万3939×61的简便运算
2025-03-04 12:21:22
推荐回答(3个)
回答1:


虽然有点烦,但比较好理解

回答2:

616161x39-393939x61
=10101x61x39-393939x61
=393939x61-393939x61
=0

回答3:

61万6161×39-39万3939×61
61×10101×39—393939×61
=393939×61—393939×61
=0。