one + seven - three = one plus seven minus three equals 1 2 3 4 five 14 6 7 8 9 10 11 12 13 three + four + six = three plus four plus six equals 1 2 3 4 5 thirteen 6 7 8 9 10 11 12 13 twenty - seventeen + nine = twenty minus seventeen plus nine equals 1 2 3 4 5 twelve 6 7 8 9 10 11 14 13 four + eight - five = four plus eight minus five equals 1 2 3 4 5 seven 6 14 8 9 10 11 12 13 fifteen - nine - two = fifteen minus nine minus two equals 1 2 3 four 14 5 6 7 8 9 10 11 12 13 nineteen - eleven + four = nineteen minus eleven plus four equals 1 2 3 4 5 twelve 6 7 8 9 10 11 14 13