June 27, 2022 Subtraction up to 20-Exercise 12 Subtraction 0 Our 12th exercsie for Subtraction upto 20.Please download the PDF: Subtraction up to 20-Exercise 12 Related Worksheets and ExercisesSubtraction up to 20-Exercise 4Subtraction up to 20-Exercise 14Subtraction up to 20-Exercise 10Subtraction up to 20-Exercise 11Subtraction up to 20-Exercise 13