40000
It then is 40000 to one significant figure
A good rule of math is to not round until the end. Do all the calculations and then round what you're answer is. A rule of thumb is round to two decimal places. If this is a science problem, you may need to round to the correct number of significant figures. If you don't know what significant figures are, don't worry about it and just round to two decimal places. side note: in the number 1,234.567 1 is in the thousands place 2 is in the hundreds place 3 in the tens place 4 in the ones place 5 in the tenths place 6 in the hundredths place 7 in the thousandths place
You take the number to the right of the tenths place (9). Then, you round the number in the tenths place depending on the number in the hundredths place (<5- stay the same, >4-round up). The answer would be 4.3.
The rule is - whatever number of decimal places you're rounding off to - look at the NEXT number... For example - round 23.456 to two decimal places. The number in the THIRD decimal place is 5 or more so you round UP to get 23.46. IF the number had been 23.454, you would round DOWN to yield 23.45.
In mathematics, rounding is the act of taking a number and writing into the nearest possible number with a place digit. You can round to the ones place, the tens place, the tenths place, the hundredths place, and so on. You round by looking at the number prior to the place digit you want to round to. For example, take .0248. If you were rounding to the ones place, you would see .0, and round it to 0. If you're rounding to the hundredths, you'd see '4,' which is less than half of ten, so you would write it as .02. In rounding, you round up if it the number is five or above, and round down if it is four or below.
It then is 40000 to one significant figure
The least number of significant figures in any number of the problem determines the number of significant figures in the answer.
A good rule of math is to not round until the end. Do all the calculations and then round what you're answer is. A rule of thumb is round to two decimal places. If this is a science problem, you may need to round to the correct number of significant figures. If you don't know what significant figures are, don't worry about it and just round to two decimal places. side note: in the number 1,234.567 1 is in the thousands place 2 is in the hundreds place 3 in the tens place 4 in the ones place 5 in the tenths place 6 in the hundredths place 7 in the thousandths place
For three significant digits, this number has to be rounded at the ones place. So if you look at the number after the ones place (8), you see that you need to round up. The final answer is 45.0 - the zero after the decimal is significant.
To round any number to hundreds place, look at the number in the tens place. If the number is less than 5, leave the number in the hundreds place as it is. If the number in tens place is 5 or above, round the number in the hundreds place up one. For the number 98143, the number in tens place is four, so it would be rounded to 98100.
To round a number, the decimal place that you want to round to, needs to be specified. If you want to round to the tenths place or to 1 decimal place, then this number is already there: 7.7 is seven and seven tenths. If you want to round it to zero decimal places, or to the nearest whole number, then look at the tenths place and if it is 0-4 you round down to 7, if it is 5-9 (which it is) you round up to 8.
You take the number to the right of the tenths place (9). Then, you round the number in the tenths place depending on the number in the hundredths place (<5- stay the same, >4-round up). The answer would be 4.3.
To one decimal place, we look at the digit in the hundredths place, which is a 2. The number will round down to 5.5 as the answer. To one whole number, it will round up to 6 as the answer.
If you see the number is ≥5 then you would round up. In this number, 9.058, you see the number in the hundredths place is 5, so you would round the number up to 9.1. Since the "8" in the thousands place is irrelevant in this, we take it out.
First of all, what is the hundredth place? The hundredth place is two place values to the right of the decimal place. so 0.00... In the number that is given, 242.1567... the hundredth place is where the number 5 is. In that case, to round a number to the hundredth place means to cut the decimal short until you reach the 2nd place value. Since the number beside the 5 is going to be rounded off (because we're rounding to the hundredth place), I ask... do we round up or round down with 6? We round UP! In that case, the rounded number is 242.16 .
7.2 mm because you round to the least specific decimal place, which is the tenths place on the first measurement.The product of of 2.2 mm and 5.00 mm is 11.00 to 4 significant figures.
As I would explain and show students, in order to round, you look at the number in the place to the right of where you want to round. If that number is 5 or more, you round up. If it's less than 5, you round down.For example, you want to round 12.54 to 1 decimal place. Look at the number in the second decimal place. That number is a 4, which is less than 5. So you'd round this down. That means your answer would be 12.5.But what if the original number was 12.58 and you needed to round this to 1 decimal place. The number in the second decimal place is an 8, which is greater than 5. So you'd round up. That means taking the number in the first decimal place and increasing it by one. So you'd round to 12.6.