40
To the nearest ten, 40
40
40
44 to the nearest ten
44, 000, 000 or 44 million
To the nearest ten, 530
It ends in a 4, so it is rounded down to 40.
It then is 70 when rounded to the nearest ten
rounded up to the nearest ten is 60
It is then 740 when rounded to the nearest ten.
81,215 rounded to the nearest ten thousands is 80,000
30