Can you solve the magic triangle? There are two different triangles: factor 3 and factor 4 and each can be solved in several different ways. The order 3 triangle can be solved using the sum of 9, 10, 11, or 13. The order 4 triangle can be solved using the sums 17, 19, 20, 21, 23.
The printable featured in the video can be found here: [ Ссылка ]

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