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

Student will round numbers to estimate before adding

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