Given a two-digit number, mentally find 10 more or 10 less than the number, without having to count; explain the reasoning used.
Standard detail
1.NBT.3.5
Depth 2Parent ID: B0BDB3112B2E4614A079B24E4940BD4CStandard set: 1st grade
Original statement
Quick facts
- Statement code
- 1.NBT.3.5
- List ID
- 5
- Standard ID
- 7BAAFB6DFC2A4A31B842AA6FEFE0FE99
- Subject
- Mathematics
- Grades
- 01
- Ancestor IDs
- B0BDB3112B2E4614A079B24E4940BD4C78A87473A4F9490681C294DB5A9BA4EF
- Source document
- DoDEA College and Career Ready Standards for Mathematics
- License
- CC BY 4.0 US