Question

Sa se calculeze folosind factorul comun:
a) 0,5*0,17+0,5*0,83
b)0,25*0,18+0,25*0,32+0,25*0,7
c)0,73*1,08-0,73*0,84
d)0,84*0,28+0,84*73-0,83
e) 9,001*0,7+9,001+9,001*998,3
Va rogg repede... E urgentt...

Answer 1

a) 0,5×0,17+0,5×0,83=0,5×(0,17+0,83)=0,5×1=0,5

b)0,25×0,18+0,25×0,32+0,25×0,7=0,25×(0,18+0,32+0,7)=0,25×1,2 = 0,3

c)0,73×1,08-0,73×0,84=0,73×(1,08-0,84)=0,73×0,24=0,1752

d)0,84*0,28+0,84*0,73-0,83=0,84×(0,28+0,73)-0,83=0,83 =0,84×1,01-0.83=0,8484-0,83=0,0184

e) 9,001*0,7+9,001+9,001*998,3=9,001×(0,7+1+998,3)=9,001×1000=9001