One Atta Time Flash Cards Distance Learning Create New Sheet Customize Problems Select a Worksheet > Version 1 Version 2 Version 3 Version 4 Version 5 Version 6 Version 7 Version 8 Version 9 Version 10 Grab 'em All Subtraction Drills (Missing Minuend) Find the starting number in a subtraction problem when the top number is missing.Use the relationship between subtraction parts (start, take away, and what’s left) to fill in the blank.Build speed and accuracy with basic subtraction facts while working backward to the missing number.
