Use estimation to decide whether answers are reasonable in addition and subtraction problems. Example: Your friend says that 79 – 22 = 27. Without solving, explain why you think the answer is wrong.
Standard detail
MA.3.2.7
Depth 1Parent ID: 0CCAA7250063461CAEE3D4D548D13182Standard set: Third Grade
Original statement
Quick facts
- Statement code
- MA.3.2.7
- List ID
- 7
- Standard ID
- 28B17F71FC3F440599F37A14B18ECC10
- Subject
- Mathematics
- Grades
- 03
- Ancestor IDs
- 0CCAA7250063461CAEE3D4D548D13182
- Source document
- The Archdiocese of Washington’s Academic Standards
- License
- CC BY 4.0 US