Find the Starting Number: Hundred Chart Subtraction

Crack the code of the missing starting number with this investigative subtraction worksheet! Second graders will utilize a hundred chart to work backwards and find the starting number of ten different subtraction sentences. 

By using a hundred chart, students are able to visualize how they must incorporate addition to track down the starting number. This worksheet reinforces a foundation for algebraic thinking used in later grade levels. 

Looking for more resources with a similar challenge? Try Inverse Subtraction Practice or Race to 1: Hundred Chart Subtraction. Additionally, students may benefit from trying the companion worksheet, Find the Starting Number: Hundred Chart Addition.