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Fun / Mixed

Level 19 / build-up

3d +/- (basic)

3 visual steps / distance or chunks

1. Add chunks

384 + 2571. Add chunksAdd hundreds, then tail.1300 + 200 = 500284 + 57 = 1413answer 641
Add hundreds, then tail.

Add hundreds, then tail.

2. Join chunks

384 + 2572. Join chunksJoin big and small totals.1300 + 200 = 500284 + 57 = 1413answer 641
Join big and small totals.

Join big and small totals.

3. Check

384 + 2573. CheckRe-read the expression for skipped operations.1300 + 200 = 500284 + 57 = 1413answer 641
Re-read the expression for skipped operations.

Re-read the expression for skipped operations.

Practice Level 19

Use the visible move, then type only when the answer is clear.

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