Addition within 1000

The first instance of  is under the 3rd Grade Math Mission. This exercise is the culmination of single digit and two digit multiplication techniques. Students will add three digit numbers and use carrying often.

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


 * 1) Add the numbers: This problem asks the student to find the correct answer when two numbers are added together. The numbers used do not exceed 1000, but will often (though not always) use carrying. Interestingly there are only three problems per set instead of the usual five.Add10002.png

Strategies
This exercise is easy to get accuracy badges using basic arithmetic. It is easy to get speed badges if one starts to use the calculator to increase speed on problems where it is appropriate.


 * 1) There are only three problems per set, so you will need to go faster to avoid the downtime during loading and calculation.
 * 2) Even if you choose to use a calculator against the spirit of the practice, don't rely on it. Some problems (those without carrying) are faster to do without a calculator.