Student will round numbers to estimate before adding
Student will check accuracy of a subtraction problem by using addition
Student will add 5 digit numbers with regrouping
Student will add 3 and 4 digit numbers with regrouping
Student will mentally add 5, 50, or 500 to a number
Student will mentally add 10, 100, or 1,000 to a number
The student will add 2 digit plus +1 digit numbers
The student will add 2 digit +2 digit numbers
The student will add 3 digit +3 digit numbers
