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Grade 2Addition & Subtraction

2.NBT.B.8

Add or subtract 10 or 100 in your head.

Worksheets for this standard 1 topic

Add or Subtract 10 and 100 Mentally2 ways
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The standard, officially

Mentally add 10 or 100 to a given number 100–900, and mentally subtract 10 or 100 from a given number 100–900.

Builds on
2.NBT.A.1Read three-digit place value
Leads to
3.NBT.A.2Add and subtract within 1000