K – CO – OE1

All three towers have a different length. Two of the towers are closer in length than the third. What could the three towers look like?

K – CO – OE17

It is easy to measure the length of two items. What could these two items be?

K – CO – OE2

One tower of blocks is a lot longer than another. What could the two towers look like?

K – CN – OE4

When I count, I say one number near the beginning and one near the end. What are my two numbers?

K – CN – OE5

Choose two numbers that are different. What do they have in common?

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