Multi-Digit Addition That Clears a Docking Bay (Grade 4)

Docking clearance won't come through until the arrival numbers add up: 3,540 plus 3,283, four digits at a time, carried across three columns. A second station covers the same standard at a gentler scale on a number line, so a cadet who is shaky can build up rather than stall. Fourth grade is the year the standard algorithm is expected to be fluent rather than newly learned, and fluency at four digits is mostly about not losing a carry.

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What this station asks for

🛰️ Docking ClearanceThe search shuttle needs clearance to dock. Add each pair of large numbers, key the exact total into the approach vector, then hit DOCK to bring it in. You line the shuttle up on the correct docking number. Five tasks, then a snack wrapper goes into the Case File.
🛰️ Plot the Long CoursePlot the long-range course: add each pair of multi-digit numbers, then slide your rocket to the exact total. Use the +100 and +1000 jumps for the big hops! You work out the answer, then slide the rocket along a number line to set the course. Five tasks, then the flight log goes into the Case File.

Five questions it might ask

Drawn from the same pool the activity uses, so these are the real thing rather than an illustration. The numbers change on every attempt — there is no fixed set to memorize.

Question	Answer
2492 + 3314 = ?	5806
3213 + 4110 = ?	7323
4002 + 2599 = ?	6601
2793 + 1924 = ?	4717
3622 + 3683 = ?	7305

👀 What to watch for

Nearly every error at this size is a lost carry rather than a wrong fact. If an answer is exactly 10, 100 or 1,000 short, that's what happened. Estimating first — 3,540 + 3,283 is about 6,800 — catches it without re-doing the whole sum.

The Common Core standard behind it

Official wording, quoted in full — not our summary of it:

4.NBT.B.4	Fluently add and subtract multi-digit whole numbers using the standard algorithm.

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Other Grade 4 skills in this case

Multi-digit multiplication4.NBT.B.5 Division4.NBT.B.6

All grades

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