617
617
19.2812
No it isn't.
0.0162
1 and 617
(9 divided by 16) minus (9 divided by 20) = 0.1125
Example 617 divided by 6. If you estimate that 600 divided by 6 is 100, you know that the actual answer will have a 1 in the hundreds place.
9
0.0218
9 divided by x
? Divided by 9 = 200