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48+63:9= 48 + 7 = 55
4x6+7x5= 24 + 35 = 59
3x6-28:7= 18 - 4 = 14
b) 140+(75-39)= 140 + 36 = 176
200-(65+46)= 200 - 111 = 89
5x(48:6)= 5 * 8 = 40
90:(3do potęgi2x5)= 90 : ( 9 * 5 ) = 90 : 45 = 2
c) 3x(75-56)= 3 * 19 = 57
5x(85+115)= 5 * 200 = 1000
64:(100-6do potęgi2)= 64 : ( 100 - 36 ) = 64 : 64 = 1
320:(8do potęgi2+16)= 320 : ( 64 + 16 ) = 320 : 80 = 4
d) 72-2x5do potęgi2= 72 - 2 * 25 = 72 - 50 = 22
93-3x2do potęgi3 = 93 - 3 * 8 = 93 - 24 = 69
95+5x3do potęgi3= 95 + 5 * 27 = 95 + 135 = 230
76+4do poęgi3: 8= 76 + 64 : 8 = 76 + 8 = 84