12.76 in standard form is 1.276 × 101
1276/99
1276
1276
1276 = MCCLXXVI
184
1276 added to something to make 2127 = 3403
98.1538
The year 1276 falls in the 13th century. The 13th century encompasses the years 1201 to 1300. Therefore, any year between those two dates, including 1276, is part of that century.
It is already in standard form.
319
It is 1276.
9,670 is the standard form.