Level 2
Numbers 1 to 100 were written on a piece of paper in 4 rows. The piece of paper was accidentally burnt and only the part shown was left. Which row was the number 69 in?
Level 2
Numbers 1 to 100 were written on a piece of paper in 4 rows. The piece of paper was accidentally burnt and only the part shown was left. Which row was the number 69 in?
Level 3
Peter folded 38 paper aeroplanes on the first day. Each day he did 4 more paper aeroplanes than the previous day. On the last day, he made 74 areoplanes. How many days did he fold paper arfour days. Each day after the first day, he made 6 more paper aeroplanes than the day before. How many days did he fold paper areoplanes?