Adding fractions with 10 and 100 as denominators

The first instance of  is under the 4th Grade Math Mission. This exercise practices adding fractions with unlike denominators, but specifically with denominators are powers of ten.

Types of Problems
There is one type of problem in this exercise:


 * 1) Add the fractions: This problem asks the student to add two fractions together, one of which has a denominator of ten and the other with a denominator of one hundred. The answer is to be given in fraction form.Addfr10-100.png

Strategies
This exercise is easy to get accuracy badges because the fractions are easily able to be converted into ones with common denominators. Speed badges are also easy once you get into a nice rhythm since there is only one type of problem.


 * 1) Answers must be given as fractions, decimals not accepted.
 * 2) Fractions do not have to be simplified or reduced.
 * 3) If {a} is the number above the 10 and {b} is the number above the 100, the answer will always be $$10a+b $$ over 100.