202320231 20232023 (a)2 20232023÷202320236 20232023195 (b)(a)2 20232023÷2=20232023 202320237 (c)(b)2 20232023÷202320239 202320238 (d)(c)5 20232023×5=20232023 20232023缺4 (e)(d)(b) 20232023+20232023=20232023 20232023缺2 (f)9(a)(e) 20232023888 (a)20232023444 (b)20232023222 (C)20232023111 (d)20232023555 (e)20232023777 n9(9-n) |