Use properties of operations to add and subtract. Given a two-digit number, mentally find 10 more or 10 less than the number, without having to count; explain the reasoning used. Subtract multiples of 10 in the range of 10-90 from multiples of 10 in the range of 10-9 (positive or zero differences), using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used.
Standard detail
M.1.1.4
Depth 1Parent ID: 75D033DC43564E0B953A5C3CE8A14CD6Standard set: Adult Basic Education Content Standards Levels 1-4, Grade Levels 0.0 - 8.9
Original statement
Quick facts
- Statement code
- M.1.1.4
- List ID
- M.1.1.4
- Standard ID
- 2795EB832B4C46DA8AB9C80DFE3720AE
- Subject
- ABE/ASE Content Standards
- Ancestor IDs
- 75D033DC43564E0B953A5C3CE8A14CD6
- Source document
- Raise Your Standards -- WCC Career Readiness Division
- License
- CC BY 4.0 US