38+23x98-37x23-15+23x38=?用简便计算(脱式)

38+23x98-37x23-15+23x38=?用简便计算(脱式)
2025-04-13 19:01:13
推荐回答(3个)
回答1:

38+23x98-37x23-15+23x38=?用简便计算(脱式)
38+23x98-37x23-15+23x38
=38+2254-852-15+874
=
2299

回答2:

38+23x98-37x23-15+23x38
=23×(98-37+38)+38-15
=23×99+23
=23×(99+1)
=2300

回答3:

38+23x98-37x23-15+23x38
=(38-15)+23x(98-37+38)
=23+23×99
=23×(1+99)
=23×100
=2300