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
1000
58 to the nearest tens is 60.
85 to the nearest tens is 90.
51 to the nearest tens is 50.
46,434,482 to the nearest tens = 46,434,480
3,589.996 to the nearest tens is 3,590
429 to the nearest tens = 430
82 to the nearest tens = 80
4,368,498 to the nearest tens = 4,368,500
248 to the nearest tens is 250
145 to the nearest tens = 150