A great problem solving activity!
Print onto paper, laminate and cut along dotted lines.
These cards can be used as a warm up activity. Read each clue one at a time. After reading each clue, brainstorm with the group what numbers it could be. Eliminate numbers you have brainstormed as you read subsequent clues and/or add more numbers to the list.
Alternatively you could give the children a minute to write the numbers it could be after the first clue. Check childrenÃ¢ï¿½ï¿½s answers and those who are incorrect sit down. Continue until the last clue has been read. Do you have a winner?