100,200,300,400,500
Since the number is 631, and you want to round it to the hundred's place, you have to look at the ten's place. The number in the ten's place is 3, so you round down. The rules are rounding are: 1. numbers 1~4 round down 2. numbers 5~9 round up This number, 631, would round to 600.
648 is rounded down to 600, which is the nearest hundred.This is because (6)48 is less than (6)50 so the number is rounded down to the previous hundred (600) and not the next (700).
599, 555, 550, 551, 578... any number greater than or equal to 550 and any number less than or equal to 600
4 makes it round down, so it is 600 to the nearest ten. 04 makes it round down also, so it is also 600 to the nearest hundred.
601, 625, 640, 644, 649
100,200,300,400,500
Since the number is 631, and you want to round it to the hundred's place, you have to look at the ten's place. The number in the ten's place is 3, so you round down. The rules are rounding are: 1. numbers 1~4 round down 2. numbers 5~9 round up This number, 631, would round to 600.
511 does not round to 600??
There are more than 5 numbers that can round down to 600 if rounding by hundreds. When rounding down by hundreds anything 601-649 rounds down to 600. If you're rounding by tens it would be anything 600-604.
When rounding from the ten's place, the numbers above 600 and below 605 round down to 600. When rounding from the hundred's place, the numbers above 600 and below 650 round down to 600. Since 600<1000, we cannot round from the thousand's place. So the numbers above 600 and below 650 round to 600.
Round down to 600
648 is rounded down to 600, which is the nearest hundred.This is because (6)48 is less than (6)50 so the number is rounded down to the previous hundred (600) and not the next (700).
599, 555, 550, 551, 578... any number greater than or equal to 550 and any number less than or equal to 600
600
550
for example, 555+325. let's say we want to round this to the nearest hundred. first you find the digit in the hundreds place, i would like to mark it. then you look to the right, you would probably want to draw an arrow. then if the digit is five or more round up, if it's less than five round down. ok, 555, you look to the right since the digit to the right is five or more round up. so you round up to 600. for 325, the digit to the right is 2, so you round down. round down to 300. ok, that was the rounding part. now you have to estimate the answer. 600+300=900. that's the answer.