Sort:  

But the answer is 45

You add the two numbers above it to the total. It's like a running total. 1+4+2+5= 12

See above.

Coin Marketplace

STEEM 0.06
TRX 0.28
JST 0.048
BTC 65798.34
ETH 1924.01
USDT 1.00
SBD 0.51