Question

вычислите:
а)7×55+7×45+3×45+3×55
б)8×2+2×92+8×98+2×8
в)37×59+37×41+63×59+41×63
г)356×73+664×27+73×644+27×356​

Answer 1

7*55+7*45+3*45+3*55=1000

8×2+2×92+8×98+2×8=1000

37×59+37×41+63×59+41×63=10000

356×73+664×27+73×644+27×356=102000