623 is rounded to the nearest unit.
600
600
Rounded to the nearest integer or whole number it is 624
It is 0.62 to the nearest hundredths.If the 3 had been a 5 or more, the answer would have been to round up to 0.63But as it was only a 3 (less than 5) it is rounded down to 0.62
only 1 and 623. 623 is not divisible by any number
623
409 + 623 = 1032
623
623 is divisible by 7.
-81 + 623 = 542
191
1000 - 623 = 377