Introduce missing digit subtraction problems with these editable slides, showing students how to use the relationship between subtraction and addition to find a missing digit given the difference. Students work through finding a missing digit, finding the missing whole, and finding missing numbers where more than one answer is possible, checking their thinking using addition throughout.
What's included:
Introductory slides explaining what the difference is and how addition can be used to find a missing number
Worked examples showing missing digit, missing whole, and multiple-answer problems, each checked using addition
13 practice slides to find the missing digits