MathCastle
Pre-AlgebraSuperchallenge

Pre-Algebra · Superchallenge problem

The whole numbers are written in rows: row 11 is 11; row 22 is 2,32,3; row 33 is 4,5,64,5,6; row 44 is 7,8,9,107,8,9,10; and so on, each row having one more number than the row before. What is the first number in the row that contains 20262026?

Practice more like this