The figure in the tenths position is a zero, so the number is rounded down, giving 2 as the answer.
35164 is 35200 rounded to 3 significant figures. To round to 3 sig fig, use the 4th digit to decide whether to round up or down; digits after the first 3 are replaced by zeros: 4th digit is 6, so round up 35164 → 35200 to 3 sig fig.
We look at the figure in the thousands place, and as it is a 1, then the number is rounded down. That gives 620000 as the answer.
30.54 rounded to one decimal place = 30.5. Because the least significant digit is 4 it is rounded down. Had it been 5 or above the answer would have been rounded up to 30.6
As the first digit after the decimal place is a zero, the overall figure is rounded down to 567.
The first significant figure is the first number which is not zero (in this case, it is the three). All numbers beyond this are significant. So the third significant figure is the 9. In this case, the number rounds down to 0.0309
62 rounded to one significant figure is 60. 57 rounded to one significant figure is 60. 573 rounded to one significant figure is 600. 0.0573 rounded to one significant figure is 0.06. In each of these answers the 6 is the only significant figure.
Oh, dude, rounding 468 to one significant figure is like making it sound fancier but actually simpler. So, 468 would be rounded to 500 because the first significant figure is 4, and we're just like, "Eh, close enough, let's round up." So yeah, 468 becomes 500 when you're all about that one significant figure life.
1042L rounded off to two significant digits is 1000L. The digit "1" in the hundreds place is the most significant digit, so the number is rounded down to 1000L.
There are 5. The zero is only ignored when it follows all other non-zero digits If it were 14,520 - the 0 would not be significant ... because the figure could be 14,524 rounded down or even 14,515 rounded up. However, if it were 14,520.0, there would be 5, with the "uncertain" number being the trailing 0
For doing significant figure you down count from the start the required amount, so 645533 would become 646000.
To quickly estimate a sum, you round both numbers to the nearest easy significant figure. In this case 8.91 can be rounded up to 9. 1.16 can be rounded down to 1. You then complete the sum with the rounded figures. 9+1 = 10, so the estimate of 8.91+1.16 is 10.
As the tenths digit is a 3, then the figure is rounded down, giving 21 as the answer.
1.66
Starting at the second digit after the decimal, if it is between 0 and 4, you round the first digit down. If it is between 5 and 9, you round it up. If the third digit is between 0 and 4, you round the second digit down. If it is between 5 and 9, you round the second digit up. Rounded to.......... 1 signifcant figure: .3 2 significant figures: .29 3 significant figures: .294 4 significant figures: .2943 5 significant figures: .29430
The figure in the tenths position is a zero, so the number is rounded down, giving 2 as the answer.
35164 is 35200 rounded to 3 significant figures. To round to 3 sig fig, use the 4th digit to decide whether to round up or down; digits after the first 3 are replaced by zeros: 4th digit is 6, so round up 35164 → 35200 to 3 sig fig.