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Approximations Questions

   1.  What is 7.53 rounded to the nearest whole number?

 

   2. What is 548.9 rounded to the nearest hundred?

 

   3. Round 4.0623 to one decimal place 

 

   4. What 12,385 rounded to the nearest ten?

 

   5. What is 3.19423 rounded to 3 decimal places?

 

   6. What is 293 rounded to one significant figure?

 

   7. What is 0.51 rounded to 1 significant figure?

 

   8. Estimate the value of 19 x 28

 

   9. A stack of 570 sheets of paper is 5.2cm thick, estimate the thickness of one sheet of paper

 

   10. 28 has been rounded to the nearest whole number, what are the upper and lowers bounds?