Rounded up to the nearest tens would be 100. Rounded to the nearest tens is 90.
100
438 rounded up would be 450. 438 rounded down would be 400.
90
90
Rounded up to the nearest tens would be 100. Rounded to the nearest tens is 90.
Not that I'm aware of. Schools would round up or down the third number (such as 3.493 would be rounded down to 3.49, and 3.496 would be rounded up to 3.50)
Look for a compatible number. 720000/90 = 8000
70
90
100
You would round up: $1.00
438 rounded up would be 450. 438 rounded down would be 400.
90
3.875 inches rounded up would be 4 inches.
3 would be rounded down to zero.
90