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Grade 3

Grade 3

Number and Operations in Base Ten 4.NBT.B.4

The Standard
Aligned Resources

4. Fluently add and subtract multi-digit whole numbers using the standard algorithm.

Aligned Resources

MathShack

Arithmetic with Overlapping Groups - Math Shack

More standards from Grade 3 - Number and Operations in Base Ten

If I'd had to teach to the Common Core, I would have used Shmoop, too.

Aristotle

The observed gravitational effect between Common Core activities results from their warping of Shmooptime.

Albert Einstein