WEEKLY QUIZ(WK 2)

Round off each of the numbers to one significant figure, leaving your answer in one significant figure: 3.98 x 2.49?

•  12.0

• 8.0

• 12.4

• 6.2

  A number is rounded to 45.6 to the nearest tenth. What is the range of possible values?

• 45.5 to 45.7

• 45.55 to 45.65

• 45.59 to 45.61

• 45.50 to 45.70

    Round 42.7 to the nearest whole number.

• 42

• 43

• 44

• 41

   Which of the following numbers rounds to 36 when rounded to the nearest whole number?

• 35.2

• 35.4

• 35.

• 36.6

  What is 157.49 rounded to the nearest whole number?

 

• 157

• 158

• 159

• 156

   If x=234.9, what is x to the nearest whole number?

   

• 235

• 234

• 236

• 233

  How many significant figures are in the number 0.00456?

• 2

• 3

• 4

• 5

   Round 0.005472 to 2 significant figures.

  

• 0.0054

• 0.0055

• 0.00547

• 0.0050

    What is 456.789 rounded to 3 significant figures?

 

• 456

• 457

• 456.8

• 456.79

   0.0009325 rounded to 2 significant figures is:

• 0.00093

• 0.00094

• 0.000932

• 0.0009