lesson
Subtracting Ones Without Crossing Ten
Subtract a one-digit number from a two-digit number without bridging through a multiple of 10.
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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