Add and subtract on an open number line

G2.NBT.29Grade 2Place ValueSource mission: Represent, Explain & Check Operations

Uses an open number line to compute within 1000 by jumping hundreds, tens, and ones.

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.NBT.B.7 2.MD.B.6

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

Explain the ideaDescribe why the response works 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.

Represent it

Uses an open number line to compute within 1000 by jumping hundreds, tens, and ones.

Estimated time: ~5 min