180,000
Find the thousands digit (0) and look at the next digit (3). If it's 5 or more, increase the thousands digit by one. If it's 4 or less, leave the thousands digit alone. Then replace all digits after the thousands by zeros.
736 to the nearest 1000 is 1000. When rounding to the nearest 1000, you look at the hundreds place of the number in question. Since the hundreds place in 736 is less than 500, you round down to the nearest 1000, which is 1000.
1000
1000
1000
1000
1000
1000
It is: 500 to the nearest 100 but zero to the nearest 1000
To the nearest ten, 980 To the nearest hundred, 1000
1000
1000
842 to the nearest 1000 is 1000. When rounding to the nearest 1000, we look at the hundreds place of the number in question. Since the hundreds place in 842 is less than 500, we round down to the nearest 1000, which is 1000.