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Sumblox Introductory Set Contains 27 number blocks and 3 activity cards.
2 game modes that will make you love math: CREATIVE MODE and LEARN-BY-PLAYING MODE. Explanation below.
10 units of 1
2 units of 2, 3, 4, 5, 6, 7, 8, 9
1 unit out of 10
Weight: 1.4kg