Question

calculati a) 2-(3,1-0,235)+(-2,75+1,3)-(+0,685)
b)2,5×(-1,5)-1,7÷0,2+9,33- radical din 1,5129
pls ajutati-ma!

Answer 1

a) 2-(3,1-0,235)+(-2,75+1,3)-(+0,685)=
=2-2,865-1,45-0,685=
=-3


b)2,5×(-1,5)-1,7÷0,2+9,33- √1,5129=
=-3,75-8,5+9,33- 1,23=
=-4,15