6540 decimeters = 0.654 kilometers.
__ VIMDXL The first two letters (V and I) are written with a vinculum (or bar) above - to multiply the value by 1000
76545 + 6540 = 83085
Answer: 6540 dm = 0.654 km
1000
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It is: 500 to the nearest 100 but zero to the nearest 1000
To the nearest ten, 980 To the nearest hundred, 1000