123456789 Add up to 100 With the numbers 123456789, make them add up to 100. They must stay in the same order. You can use addition, subtraction, multiplication, and division. Answer 1 + 2 + 3 + 4 + 5 + 6 + 7 + (8 x 9) = 100 « Previous RiddleBarrel Weighs 20 Pounds Next Riddle »How Many Months Have 28 Days