Find the unknown in equations with the unknown after the equal sign or on either side

G1.EQ.11Grade 1EquationsSource mission: Unknowns in Any Position

Solves equations such as c = ☐ + b and a + b = ☐ + d, where the unknown is not in a standard position.

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.D.8 1.OA.D.7

answers 10 for 6 + 4 = ☐ + 3 — computes the left side and writes it in the box, ignoring the + 3

These evidence lanes define what would count toward this atom.

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Solves equations such as c = ☐ + b and a + b = ☐ + d, where the unknown is not in a standard position.

Estimated time: ~5 min