а) 2+3+4+3 = 12:4 = 3.
б) 3+4+5+8 = 20:4 = 5.
в) 2+3+5+6 = 16:4 = 4. (3+5):2=4.
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а) 2+3+4+3 = 12:4 = 3.
б) 3+4+5+8 = 20:4 = 5.
в) 2+3+5+6 = 16:4 = 4. (3+5):2=4.