To round 1,248,486 to four significant figures, you focus on the first four digits, which are 1, 2, 4, and 8. The digit following these is 4, which means you do not need to round up. Therefore, 1,248,486 rounded to four significant figures is 1,248,000.
1.000 x 10^5
To express 34.026 to 2 significant figures, we round it to 34. The first two significant figures are the digits '3' and '4', so the final answer is 34.
4 significant figures.
4 significant figures.
57.50
0.6000
145 * 10^4
0.019807 rounds to 0.01981
2.540x10^4
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
1.000 x 10^5
Just cut off the numbers at the eight: 48,000,000
4 significant figures.
You have to round to two significant digits because 5.5 only has two. So, 5.5 × 2.141 = 12
There are 3 significant figures in 94.2.
4 significant figures.