If you mean: 12*100+18*10 then it is 1,380
1200 +180 =1380
1,200.0
2 X 0.018 = 0.036 (thirty six hundreds)
You write three and eighteen hundredths (3.18) in standard form as: 3.18 × 100
1,800
1200 +180 =1380
twelve and eighteen hundredths
Twelve and eighteen hundredths.
Late eighteen hundreds -- early nineteen hundreds
one thousand, eight hundred OR eighteen hundred
1,200
1,200.0
12.11
5.12
eighteen thousand, five hundred forty and twelve hundredths.
718.012
1206