BIG IDEA 2

(Addition and Subtraction)

Develop quick recall of addition facts and related subtraction facts and fluency with multi-digit addition and subtraction

Chapter 4
Basic Facts and Relationships

sums
addend
difference
rule

Chapter 5
2-Digit Addition

estimate
regroup

Chapter 6
2-Digit Subtraction

difference
regroup
estimate
tens
ones
digit

Chapter 7
3-Digit Addition

addend
sum
hundreds
regroup
thousands

Chapter 8
3-Digit Subtraction

difference
subtract
regroup
hundreds
tens
ones