51 to the nearest tens is 50.
50
58 to the nearest tens is 60.
46,434,482 to the nearest tens = 46,434,480
85 to the nearest tens is 90.
248 to the nearest tens is 250
50
50
350
58 to the nearest tens is 60.
4,368,498 to the nearest tens = 4,368,500
3,545 to the nearest tens is 3,550
1125 to the nearest tens is 1130
3,589.996 to the nearest tens is 3,590
392 to the nearest tens = 390
429 to the nearest tens = 430
82 to the nearest tens = 80
145 to the nearest tens = 150