Use this fun 'search and find' resource to practice recognising missing numbers in a sequence on a hundreds board. This is an excellent skill for students to practise as it helps boost fluency and knowledge of numbers. Students are asked to look over the hundreds chart and identify the 10 missing numbers, hidden by different coloured magnifying glasses. The game board is editable, with the 10 magnifying glasses moveable. You can choose which numbers to cover. Students can write the responses on a whiteboard, in their books or on the recording sheet. You might also be interested in the printable task card version of this activity. Why not have the students create a game board for their classmates to play?