A word sleuth style search to practise subtraction is a great way for students to practise their subtraction number facts. Available for subtraction sums 10-22. Students are asked to find 20 sums that equal the given number at the top of the sheet. This version has a tally space at the bottoms of the page for students to keep track of how many they have found. A blank template is provided for students to create their own subtraction sleuth for a chosen number.