Match these items match the items in the left column to the items in the right column 
1.                                          In 10^4, 10 is the base; it is the number to be used as a factor. 
2.
In 10^4, 4 is exponent; it is the number of times the base is to be used as a factor. 
3.
A decimal system of weights and measures, employing grams, meters liters, and other units. 
• Exponent 
• Metric system 
• Base