Review Time Review Time A. Subtract the numbers. 6 – 1 = 8 – 2 = 7 – 2 = 7 – 3 = 5 – 4 = 6 – 4 = B. Find the difference. 7 6 4 5 8 – 0 – 5 – 2 – 3 – 1 9 6 7 9 2 – 5 – 2 – 5 – 0 – 1 4 3 6 5 3 – 1 – 0 – 3 – 1 – 1 65