6) a) 1,3*6,1=13/10*61/10=(13*61)/100=7,93
b) 3,4*0,5=3,4*1/2=1,7
c)3,14*4,13=(314*413)/10000=12,9682
d)2,18*0,025=(218*25)/100000=0,0545
e)2,342*4,5=(2342*45)/10000=10,539
f)2,35*4,12=(235*412)/10000=9,692
si ex 13)
a) 12,5-7,5=5
12,5+7,5=20
=> produsul =100
b)24,38-2,7=21,68
24,38+2,7=27,08
21,68*27,08=587,0944
c)0,75-0,25=0,5
0,75+0,25=1
1*0,5=0,5
d)220,4-103,75=116,75
220,4+103,75=324,15
116,75*324,15=37884,5125
