2.Calculeaza in 3 moduri. 23+11+34= = = 23+11+34= = = 23+11+34= = =

1. 23+11+34 = 34+34 = 68
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2. 23+11+34 = 23+34+11 = 57+11 = 68
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3. 23+11+34 = 11+34+23 = 45+23 = 68