430
If the number on the end is 5 or more then you round up (in this case 6). If it was less than 5 you would round down to 420.
426 rounded to the nearest tens place is 430
To the nearest ten, 430 To the nearest hundred, 400
400
0
It is 430.
26,426,000 is already rounded to nearest thousands place.
60
It is then 740 when rounded to the nearest ten.
36,184 rounded to the nearest ten thousands place is 40,000.
2602 rounded to the nearest ten is 2600.
320
260