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calculeaza in doua moduri:188x(23+29);188x(23+29);79x(64+49);4x31x68;4x31x68

Răspuns :

188 * 52 = 9776
188*23 + 188*29 = 4324 + 5452 = 9776

79 * 113 = 8927
79*64 + 79*49 =   5056 + 3871 = 8927

124 * 68 = 8432
)4* 31) * 68 = 124 * 68  = 8432