Because 450 is nearer to zero than it is to 1,000.
450 to the nearest 1000 is 0. When rounding to the nearest 1000, we look at the hundreds place. Since 450 is less than 500, it rounds down to 0 when considering the nearest 1000.
0
0
0
0 (zero) is 409 rounded to 1000's.
450 to the nearest 1000 is 0. When rounding to the nearest 1000, we look at the hundreds place. Since 450 is less than 500, it rounds down to 0 when considering the nearest 1000.
0
921 rounded to the nearest ten thousand is 0. Rounded to the nearest thousand is 1000.
176 rounded to the nearest 1000 is 0
0
450.0
0
0
0
0
0
0