Rounding integers to significant figures

12 questions

1. Significant figures are the digits in a number that contribute to the ___ of the number.
2. Select all the numbers which have 6 as the first significant figure.
3. In the number 45 026, in which column is the first significant figure?
4. Match each number to its value when it is rounded to one significant figure.
5. Round 85 026 to one significant figure.
6. What value could the missing digit be in 5\square 265 = 50 000 (to 1 s.f.)?
7. In the number 50 872, the 8 is the ___ significant figure.
8. Select all the numbers which have 7 as the third significant figure.
9. Select all the numbers which have zeros that are not needed to preserve the place value of other digits.
10. Match each number to the correct statement.
11. Round 50 904 to 2 significant figures.
12. Round 40 956.644 to 3 significant figures.

License: OGL