In this topic, students will:
add two 3-digit numbers by breaking apart problems into simpler problems
use regrouping to add 3-digit numbers
add three or more numbers using addition strategies
subtract multi-digit using the expanded algorithmÂ
use regrouping to subtract 3-digit numbers
use strategies to add 3-digit numbers and subtract a 3-digit number from another 3-digit number with one or more zeros