Math/Calc. Set 2 – Significant Figures in Calculations

Perform the following calculation and express the answer as an ordinary number.  Be sure to round off the answer correctly and to the proper number of significant figures.  Do not use scientific (exponential) notation.

  

0.000234567  ?  0.04010  =  _______ 

0.005850

Perform the following calculation and express the answer as an ordinary number.  Be sure to round off the answer correctly and to the proper number of significant figures.  Do not use scientific (exponential) notation.

  

12.3456  +  0.124  =  _______ 

12.470

Perform the following calculation and express the answer as an ordinary number.  Be sure to round off the answer correctly and to the proper number of significant figures.  Do not use scientific (exponential) notation.

  

0.000666666  ?  0.01210  =  _______ 

0.05510

Perform the following calculation and express the answer as an ordinary number.  Be sure to round off the answer correctly and to the proper number of significant figures.  Do not use scientific (exponential) notation.

  

234.567  +  1.23  =  _______ 

235.80

Perform the following calculation and express the answer as an ordinary number.  Be sure to round off the answer correctly and to the proper number of significant figures.  Do not use scientific (exponential) notation.

  

6.25 – 5.55  =  _______ 

0.70

Perform the following calculation and express the answer as an ordinary number.  Be sure to round off the answer correctly and to the proper number of significant figures.  Do not use scientific (exponential) notation.

  

0.00055555  ?  0.03020  =  _______ 

0.01840

Perform the following calculation and express the answer as an ordinary number.  Be sure to round off the answer correctly and to the proper number of significant figures.  Do not use scientific (exponential) notation.

  

345.6787  +  4.211  =  _______ 

349.890

Perform the following calculation and express the answer as an ordinary number.  Be sure to round off the answer correctly and to the proper number of significant figures.  Do not use scientific (exponential) notation.

  

6.25 + 5.55  =  _______ 

11.80

Perform the following calculation and express the answer as an ordinary number.  Be sure to round off the answer correctly and to the proper number of significant figures.  Do not use scientific (exponential) notation.

  

0.000666666  ?  0.0230  =  _______ 

0.0290

Perform the following calculation and express the answer as an ordinary number.  Be sure to round off the answer correctly and to the proper number of significant figures.  Do not use scientific (exponential) notation.

  

7.65 – 6.75  =  _______ 

0.90

Perform the following calculation and express the answer as an ordinary number.  Be sure to round off the answer correctly and to the proper number of significant figures.  Do not use scientific (exponential) notation.

  

8.35 + 7.55  =  _______ 

15.90

Perform the following calculation and express the answer as an ordinary number.  Be sure to round off the answer correctly and to the proper number of significant figures.  Do not use scientific (exponential) notation.

  

654.328  +  2.47  =  _______ 

656.80

Perform the following calculation and express the answer as an ordinary number.  Be sure to round off the answer correctly and to the proper number of significant figures.  Do not use scientific (exponential) notation.

  

8.35 – 7.55  =  _______ 

0.80

Perform the following calculation and express the answer as an ordinary number.  Be sure to round off the answer correctly and to the proper number of significant figures.  Do not use scientific (exponential) notation.

  

9.25 + 8.45  =  _______ 

17.70

 Perform the following calculation and express the answer as an ordinary number.  Be sure to round off the answer correctly and to the proper number of significant figures.  Do not use scientific (exponential) notation.

  

7.65 + 6.75  =  _______ 

14.40

Perform the following calculation and express the answer as an ordinary number.  Be sure to round off the answer correctly and to the proper number of significant figures.  Do not use scientific (exponential) notation.

  

9.25 – 8.45  =  _______ 

0.80
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