100
It is 1000.
It is 72.
Write the place value of 17493
That's correct if rounding to the second greatest place value, but not the greatest. The greatest place value in a three digit number is the hundreds place. 849 rounded to the nearest hundred is 800.
7.84; ones
In the number 3,400 the greatest place would be the 3. And in 800, the greatest place would be the 8. Basically it is the highest value in a number.
Whatever the greatest place is, look at the number immediately to the right of it. If that number is 4 or lower, zero it and everything to the right of it out. If that number is 5 or higher, increase the greatest place by one and zero everything to the right of it out.
800
10000
200,000
It is 1000.
20,000
Round 152+269 to the greatest place value
20,000
4000
1000000000
5000