Question

丁丁和乐乐帮陈老师做红五星，丁丁做了68个，乐乐做了90个，要使两人的红五星同样多，乐乐应该给丁丁多少个？正确列式是

1. A.
   90-68
2. B.
   (90-68)×2
3. C.
   (90+68)÷2
4. D.
   (90-68)÷2

Answer 1

D