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Number & Base…
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Grade 1
Number & Base Ten
Add within 100 using place value
Browse
Grade 1
Number & Base Ten
Add within 100 using place value
Grade 1 Math
Add within 100 using place value
The main lesson, then each kind of problem it solves.
Add within 100 using place value
Main lesson
Add two-digit numbers
Use this for “Find the value of 27 + 46.”
Subtract tens
Use this for “Find the value of 80 − 30.”
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