Prof. B Arithmetic 2: Multiplication facts > Fast Subtraction > Flashcards
(1) 4 - 2 = 2 (2) 2 - 2 = 0
(4 ÷ 2)
2
(1) 6 - 3 = 3(2) 3 - 3 = 0
(6 ÷ 3)