Question

Calculați ținând cont de ordinea efectuării operațiilor. a)3,21•1,3-4,17•(1,5:5+0,7). b)(4,4•2,5+0,1):3-3,7. c)3,25+5•(7,25:5-1). d) (0,15+0,8•0,7):7,1. e)1,02+(5,25-0,9)•2,8. f) (2,1:0,7+6,9):0,2-0,01

Answer 1

a.4,173-4,17*(0,3+0.7)=4.173-4.17=0.003
b.(11+0.1):3-3.7=11.1:3-3,7=3.7-3.7=0
c.3,25+5*(1.45-1)=3,25+5*0.45=3,25+2.25=5.5
d.(0.15+0.56):7,1=0.71:7.1=0.1
e.1.02+4.35*2.8=1.02+34.8=35.82
f.(3+6.9):0.2-0.01=9.9:0.2-0.01=49.5-0.01=49.49