400
0.0002
42.1053
4000
4000
285.7143
57.1429
10% of 40000 is 4000 (divide it by 10) so half of that is 2000 (10 divided by 2 is 5)
250
80
0.0008
To divide 4000 by 80, you can simplify the calculation by first reducing both numbers. Since 80 can be expressed as 8 multiplied by 10, you can divide 4000 by 8 to get 500, and then divide that result by 10, yielding 50. Alternatively, directly dividing 4000 by 80 gives you 50 as well. Thus, 4000 divided by 80 equals 50.
4000 ÷ 10 = 400