It could also be misinterpreted as 105 (1+20)x 5 = 105 ! maths is funny like that. There are simple rules of counting and then there are conventions which must be followedshow me the working out @ohkaaay ? it's 101 until the end of the Universe.
google it "1 + 20 x 5" = ? and if you try it like this "(1+20) x 5" = ? you see the difference
(ok you've come around now !) yes 101 is correct