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Grade 1

Grade 1

Number & Operations in Base Ten 1.NBT.C.5

The Standard

5. Given a two-digit number, mentally find 10 more or 10 less than the number, without having to count; explain the reasoning used.

Aligned Resources

More standards from Grade 1 - Number & 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