130
nearst hundered is 3800
10%x = x/10. 129/10 = 12.9
129 times 10 to the negative 6 (129 x 10-6) in standard notation = 0.000129
There are 10 millimetres in one centimetre. Therefore, 129 centimetres is equal to 129 x 10 = 1290 millimetres.
Well, isn't that a happy little question! To find 10% off of 129, you can simply multiply 129 by 0.10, which equals 12.9. So, 10% off 129 is 12.9. Remember, mistakes are just happy accidents in the world of math!
600
6580
It is 14.0 and not 13.9
900
100
It is 2.80 to the nearest hundredth
23.6