10元15元8元*X9{-K1w1\.M
(1)比贵多少钱?*X9{-K1w1\.M
算式:提示:u,F;{(A9]0l/Y'A4B8Z(n*X9{-K1w1\.M
答:比贵)r0L8^;p(P'c-T元。*X9{-K1w1\.M
(2)比贵多少钱?*X9{-K1w1\.M
算式:提示;n4}3D+{/_'[*X9{-K1w1\.M
答:比贵;G6L5S,Z元。*X9{-K1w1\.M
(3)20元能买什么?*X9{-K1w1\.M
算式:提示.`)B3d:W'r'I6z-^/n;B4c*J1C.d3a+P;W*X9{-K1w1\.M
算式:提示:B.B3D2O5Y4{.b(p;^,Z*o)N2i *X9{-K1w1\.M
*X9{-K1w1\.M