Solve compare, bigger-unknown word problems within 20

G1.OA.19Grade 1OperationsSource mission: Compare Stories

Given a smaller amount and the difference, finds the larger amount.

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?

1.OA.A.1 1.OA.D.8

subtracts despite the consistent 'more' language, overcorrecting from earlier keyword traps

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

Tell it apartDistinguish the target from a near miss 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

Given a smaller amount and the difference, finds the larger amount.

Estimated time: ~5 min