440
440
It is: 440
440
440
440
440
440
400
440
It is 440 when rounded to the nearest ten. As the 4 in the units place is less than 5, it is rounded down. Note: If the 4 units had been 5 or more, it would be rounded up. So 445 would have become 450
-440
439 rounded to the nearest ten is 440.