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beginner
Problem 06 • Step 01
Add on paper
On the board, adding was pouring and lifting pebbles. Now there is no board, only numbers written our way, one above the other.
Add them a column at a time, starting from the right. Write one sign below each column. When a column comes to ten or more, send the ten on to the next column: tap the box above it to carry a 1. There are 3 rounds.
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Exercise 01Loading...