lesson
Adding Tens to a Two-Digit Number with Base 10
Use Base 10 apparatus and pictorial sketches to add multiples of 10 to a two-digit number.
Updated 1 month ago · 5 views
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Adding and Subtracting Ones and Tens
10 lessons
Goal
Add and subtract one-digit numbers and multiples of ten to and from two-digit numbers using mental and visual methods.
10 lessons
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