# How To Add

I accidently watched a [clip][0] (I was lured by the thumbnail lol
) in which Shinomiya Runa does mental arithmetic and found it inte
resting. I did myself too so I'll share it.

I don't know, this might be a shitpost but here is my website afte
rall. I'll post whatever I want to.

[0]: http://inv.zzls.i2p/watch?v=diwQPO9m2wE


Q1) 89+65+45+86=?

1. 89 + 65 = 14:14 = 154
2. 154 + 45 = 199
3. 199 + 86 = 200 + 85 = 285.

Q2) 39+68+53+26=???

1. 39 + 68 = 9:17 = 107
2. 107 + 53 = 160
3. 160 + 26 = 186.

Q3) 1+5+8+3+7+2+8

1. 1 + 5 = 6
2. 6 + 8 = (6-2) + 10 = 14
3. 14 + 3 = 17
4. 17 + 7 = (7-3) + 20 = 24
5. 24 + 2 = 26
6. 26 + 8 = (6-2) + 30 = 34.