Solve compare, difference-unknown word problems within 100

G2.OA.05Grade 2OperationsSource mission: Addition & Subtraction Stories Within 100

Finds how many more or fewer one quantity is than another, within 100.

Progress & proof summary

LifecycleNot started

Evidence progress0 of 2 pieces collected

Current predictionNo prediction yet

Next reviewNot scheduled

Mastery projection: Not available yetWhat does this mean?

2.OA.A.1

These evidence lanes define what would count toward this atom.

EvidencePerformanceStatusNext step

Apply the ideaUse the idea in a new situation Not startedCollect one observation

Represent itShow the idea with a model or notation Not startedCollect one observation

No evidence recorded yet

The first response record for this atom will appear here.

Recommended next step

Use one focused task to begin collecting evidence for this atom.

Apply the idea

Finds how many more or fewer one quantity is than another, within 100.

Estimated time: ~5 min