Step 1 of 4 · Carry the 1
Stack the numbers. Add column-by-column, right to left. Carry when a column overflows 9.
If a column sums to
10 or more
, write the ones digit and
carry the 1
to the next column.
Next
Step 2 of 4 · 347 + 285
347 + 285 =
632
Replay
Next
Step 3 of 4 · 567 + 433 (carry chain!)
567 + 433 =
1,000
Replay
Practice
Step 4 of 4 · Your turn
Stack vertically · carry when over 9.
Next question
🏆
Nice work!
You carried the 1.
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