奶奶今年56岁，爷爷比奶奶大3岁，爷爷今年多少岁？7N']0p7o9f9\9{'j
算式：提示,{-y/_-Y(]-A3W)j(H7N']0p7o9f9\9{'j
答：爷爷今年'p9a/@2n6Z7|5f7m1s'u/B(e7@:e岁。7N']0p7o9f9\9{'j