Knowledge atom
Represent a subtraction situation with an equation
Writes a subtraction equation with a symbol for the unknown that matches the structure of a given situation.
Start practiceProgress & proof summary
LifecycleNot started
Evidence progress0 of 1 pieces collected
0%Current predictionNo prediction yet
Why?Next reviewNot scheduled
Mastery projection: Not available yetWhat does this mean?
Standards alignment
1.OA.A.1
Prerequisites
Common misconceptions
- writes the smaller number first because it was mentioned first
Required evidence
These evidence lanes define what would count toward this atom.
EvidencePerformanceStatusNext step
Represent itShow the idea with a model or notation Not startedCollect one observation
Recent evidence
No evidence recorded yet
The first response record for this atom will appear here.