Long Multiplication

Use the distributive property: $23\times 18=23\times (20-2)=(23\times 20)-(23\times 2)=460-46=414$.

Break it into simpler steps: $52\times 15=(50+2)\times 15=(50\times 15)+(2\times 15)=750+30=780$.

Break it down into smaller steps: $36\times 24=(30\times 24)+(6\times 24)=720+144=864$.

Break the problem down: $19\times 47=(19\times 40)+(19\times 7)=760+133=893$.

Break the problem down: $103\times 26=(103\times 20)+(103\times 6)=2060+618=2678$.

Breaking it down step by step: $263\times 35=(263\times 30)+(263\times 5)=7890+1315=9205$.