填空;K(k3s3p-C6F4~'w7`
3个3相加的和，列式为7q2{.d0n3|2Y，乘法算式是：.@;H-h(j1s5h。;K(k3s3p-C6F4~'w7`
35里面有2l+d0[5n8p个5，列式3P5m;r9f9w+u。;K(k3s3p-C6F4~'w7`