995 to the nearest tens is 1000. When rounding to the nearest tens, you look at the digit in the ones place. If it is 5 or greater, you round up; if it is less than 5, you round down. In this case, the digit in the tens place is 9, which is 5 or greater, so you round up to the nearest tens, which is 1000.
1000
20 is already rounded to the nearest tens.
3,681 to the nearest tens place is 3,680
508 to the nearest tens = 510
56,999 to the nearest tens is 57,000
1000
58 to the nearest tens is 60.
4,368,498 to the nearest tens = 4,368,500
3,589.996 to the nearest tens is 3,590
392 to the nearest tens = 390
248 to the nearest tens is 250
145 to the nearest tens = 150
429 to the nearest tens = 430
82 to the nearest tens = 80
85 to the nearest tens is 90.
46,434,482 to the nearest tens = 46,434,480
51 to the nearest tens is 50.