Respuesta :

Hey there!

1+2+3+4+5+6+7+8×9
1 + 2 = 3
3 +3 = 6
6 +4 = 10
10 + 5 = 15
15 + 6 = 21
21 + 7 = 28
28 + 8 (9) = 100

Good luck on your assignment and enjoy your day

~MeIsKaitlyn

Note: Just go through all of your operations (+, - , × , ÷ )