9 - 7 = ______________________________ 2 8 - 4 = ______________________________ 4 9 - 5 = ______________________________ 4 5 + 1 = ______________________________ 6 6 - 5 = ______________________________ 1 6 + 3 = ______________________________ 9 9 - 4 = ______________________________ 5 9 - 2 = ______________________________ 7 9 - 3 = ______________________________ 6 6 - 5 = ______________________________ 1 9 - 2 = ______________________________ 7 8 - 7 = ______________________________ 1 8 - 3 = ______________________________ 5 7 + 2 = ______________________________ 9 6 + 1 = ______________________________ 7 1 + 6 = ______________________________ 7 8 + 1 = ______________________________ 9 8 - 7 = ______________________________ 1 4 + 2 = ______________________________ 6 2 + 3 = ______________________________ 5 1 + 9 = ______________________________ 10 9 - 5 = ______________________________ 4 9 - 5 = ______________________________ 4 2 + 5 = ______________________________ 7 5 + 1 = ______________________________ 6 8 + 2 = ______________________________ 10 1 + 2 = ______________________________ 3 3 + 4 = ______________________________ 7 6 + 2 = ______________________________ 8 3 + 2 = ______________________________ 5 5 + 3 = ______________________________ 8 8 - 5 = ______________________________ 3 3 + 6 = ______________________________ 9 3 + 4 = ______________________________ 7 4 + 1 = ______________________________ 5 7 + 2 = ______________________________ 9 8 - 5 = ______________________________ 3 9 - 3 = ______________________________ 6 2 + 1 = ______________________________ 3