playing cards with photo

playing cards with photo tching the cross-sectional card playing card playing card, the two form a corner, you can change the size. 22, the multiplication table (a): 10 random cards, a set of two, multiplied around. Timing. 23, observation of objects: picking out two identical cards, observe the axis of symmetry and mirror symmetry. 24, the multiplication table (b): the same 22 25 Statistics: with 18. The statistical results are shown graphically. 26, math Wide: randomly selected four cards, with his back to the child, let the children guess the number, you can let him questions. (Eg: large right than 5?) With fewer questions for the winning. 27, to solve the problem: with 3 28, in the table division (a): random sample of 20 cards, let the children were equally divided into 10 parts, five, four, two copies. Timing. 29 graphics and transformation: the same 21 30, in the table division (two): 10 random cards, a set of two, after multiplying, and dividing. Timing. 31, Wan within a few understanding of: randomly

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