1 + 2 = ______________________________ 3 7 - 5 = ______________________________ 2 3 + 4 = ______________________________ 7 4 + 5 = ______________________________ 9 5 + 4 = ______________________________ 9 7 + 2 = ______________________________ 9 8 - 3 = ______________________________ 5 1 + 6 = ______________________________ 7 9 - 7 = ______________________________ 2 9 - 2 = ______________________________ 7 1 + 9 = ______________________________ 10 7 + 3 = ______________________________ 10 8 - 6 = ______________________________ 2 9 - 8 = ______________________________ 1 5 + 4 = ______________________________ 9 9 - 4 = ______________________________ 5 9 - 6 = ______________________________ 3 8 - 8 = ______________________________ 0 9 - 8 = ______________________________ 1 9 - 4 = ______________________________ 5 8 - 3 = ______________________________ 5 9 - 2 = ______________________________ 7 7 - 5 = ______________________________ 2 2 + 8 = ______________________________ 10 8 + 1 = ______________________________ 9 2 + 7 = ______________________________ 9 6 + 1 = ______________________________ 7 7 - 4 = ______________________________ 3 2 + 5 = ______________________________ 7 7 - 6 = ______________________________ 1 6 - 6 = ______________________________ 0 9 - 6 = ______________________________ 3 3 + 7 = ______________________________ 10 7 - 5 = ______________________________ 2 7 - 5 = ______________________________ 2 9 + 1 = ______________________________ 10 2 + 3 = ______________________________ 5 9 - 8 = ______________________________ 1 8 - 6 = ______________________________ 2