9+100+1+200 equals what?

310

Step-by-step explanation:

9 + 100 = 109

109 + 1 = 110

110 + 200 = 310

2 is the mode.

Step-by-step explanation:

First you have to put the numbers in order, which you did. The number that shows up the most is the mode. In this case it's 2, since it shows up twice and all the other numbers only show up once.

Here's a tip to remember:

Mode sounds like most.

The most shown number is the mode.