# 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  =  _______
 0.00585
 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  =  _______
 12.47
 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  =  _______
 0.0551
 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  =  _______
 235.8
 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  =  _______
 0.7
 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  =  _______
 0.0184
 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  =  _______
 349.89
 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  =  _______
 11.8
 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  =  _______
 0.029
 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  =  _______
 0.9
 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  =  _______
 15.9
 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  =  _______
 656.8
 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  =  _______
 0.8
 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  =  _______
 17.7
 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  =  _______
 14.4
 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  =  _______
 0.8
x

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