Question

Bardzo prosze o jak naszybsze obliczenie zadanka :) Potrzebuje na teraaazzzz :D

Answer 1

2.6
a) (128 + 375) + ( - 58) = 128 + 375 - 58 = 445
b) [ 326 + ( - 458)] + (24 + 458) = (326 - 458) + 482 = -132 + 482 = 350
c) [726 + (- 226)] * (-8) = (726 - 226) * (-8) = - 5808 + 1808 = - 4000
d) 212 * 17 + (-312) * 17 = 3604 + (-5304) = 3604 - 5304 = -1700
2.7
a) [-12 + (-8)] * [-2 * (-24) + 5 * (-12)] = (-12 - 8) * [ 48 + (-60)= -20 * (48 - 60) = -20 * (-12)= 240
b) [-7 * 6+6*(-5)] * [12*(-8) +(-17)*6-(-15)*(-4)] = [-42+(-30)] * [-96+(-102)-60]= -72*(-258)= 18576
c) [-18*9-16*(-8)] * [12*(-6)-8*(-4)= [-162-(-128)] * [-72-(-32)]= (-162+128) * (-72+32)=-34*(-40)=1360

Answer 2

2.6

a)(128+375)+(-58)=503-58=445

b)[326+(-458)]+(24+458)=326-458+24+458=-132+482=350

c)[726+(-226)](-8)=726-226-8=492

d)212*17+(-312)*17=3604-5304=-1700

2.7

a)[-12+(-8)]*[-2*(-24)+5*(-12)]=-12-8*48-60=-20*(-12)=240

b)[-7*6+6*(-5)]*[12*(-8)+(-17)*6-(-15)*(-4)]=-42-30*(-96)-102+60=-72*(-198)+60=14156+60=14216

c)[-18*9-16*(-8)]*[12*(-6)-8*(-4)]=-162+128*(-72)+32=-34*(-40)=1360