scientific notation

Question

express the following numbers in scientific notation: 

 

1.) 123,876.3 

 

2.) 1,236,840

 

Thanks your help :) 

Answer 1

Beatrice,

 

To express a number in scientific notation,

 

1) 123,876.3 

 

1.238763 x 10⁵

Notice the exponent on 10 is equal to the number of places I moved the decimal point to the left from the original number.

 

 

2) 1,236,840

1.236840 x 10⁶