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Homework Videos Topic 2
Number Sense
Addition & Subtraction
2.1 Addition Meaning and Properties
Solve Addition Problems
Solve Addition Problems with Place Value
Commutative Property
2.2 Subtraction Meanings
Solve Subtraction Problems
2.3 Using Mental Math to Add
Solving Additions Problems with 10s
2.4 Use Mental Math to Subtract
Solve Subtraction Problems with a Number Line
2.5 Estimating Sums
Round to the Nearest 10 or 100 in Real World Examples
2.6 Estimating Differences
Estimating Differences
2.7 Reasonableness
Assess Reasonableness
Estimate Solutions in 2-Step Word Problems