42x95十95用简便方法算

2025-06-23 22:22:58
推荐回答(3个)
回答1:

42×95+95
=(42+1)×95
=43×95
=4085

回答2:

42x95+95
=95x(42+1)
=95x(40+3)
=3800+285
=4085

回答3:

=95×(42+1)
=95×43
=(100-5)×43
=100×43-5×43
=4300-215
=4085