一瓶汽水4元一袋饼干6元一盒糖20

一瓶汽水4元6^,N6y9t+w3};t2s7d(F

一袋饼干6元6^,N6y9t+w3};t2s7d(F

一盒糖20元6^,N6y9t+w3};t2s7d(F

（1）一盒糖比一袋饼干贵多少元钱？6^,N6y9t+w3};t2s7d(F

算式：提示1B.G0}3A:Q:^+I-`'H6^,N6y9t+w3};t2s7d(F

答：一盒糖比一袋饼干贵+S,E6M;a7R-Z-t-H4\,v/f,V:a9M(P元钱。6^,N6y9t+w3};t2s7d(F

（2）买一盒糖的前够买几瓶汽水？6^,N6y9t+w3};t2s7d(F

算式：提示0Z/V5E6^,N6y9t+w3};t2s7d(F

答：买一盒糖的前够买'I7B7Q2[3Z瓶汽水。6^,N6y9t+w3};t2s7d(F

（3）买这三样食品共需多少元钱？6^,N6y9t+w3};t2s7d(F

算式：提示8u:a;A(V.^.?1j6A'B4g6H2v)f1U(O3i'z+[2m2\-l6^,N6y9t+w3};t2s7d(F

答：买这三样食品共需:D:s9B元钱。6^,N6y9t+w3};t2s7d(F