It is 420.
Although many schools teach you to round 5 up, always rounding up from 5 is inappropriate because it introduces an upward bias. The IEEE (Institute of Electronic and Electrical Engineers) standard 754 is to round 5 up or down so that the new last digit is even. See link for more: //en.wikipedia.org/wiki/Rounding#Round_half_to_even
Rounded to the nearest ten thousand, 425 is approximately equal to 0.
1.6569 is 0 (zero) rounded off the the nearest ten.
1 rounded to the nearest ten is zero.
900
6700
425 456 rounded off to the nearest ten is 425 460.
Rounded to the nearest ten thousand, 425 is approximately equal to 0.
430
1.6569 is 0 (zero) rounded off the the nearest ten.
674 rounded to the nearest ten is 670.
280,000 rounded off to the nearest ten thousand is still 280,000 but if it is rounded off to the nearest hundred thousand it is 300,000
850
98.2537 rounded off to the nearest tenth is 98.3.98.2537 rounded off the the nearest ten is 100.
125 rounded off the nearest ten is 130.
1 rounded to the nearest ten is zero.
370 rounded to the nearest tens is 370.
900