# Add & subtract 1 or 10 within 100

# Add & subtract 1 or 10 within 100

0.99

1.NBT.5, 2.OA.1

### About This Sprint

*1 or 10 more**expressed as addition sentences, e.g.*

*57 + 1 =*

*57 + 10 =*

*1 or 10 less**expressed as subtraction sentences, e.g.*

*43 – 1 =*

*43 – 10 =*