Question

7+8+(23X3-45)-6=
72X5-(276-8x9)+50=
279-179+(50+25x3)-25=
5x(24x2-40+10)+2000=
(238x4-781)-(252-198)=

Answer 1

15+69-45-6=
=84-39=
=33 ăsta este la primul

Answer 2

a) 7+8+(23×3-45)-6=
15+(69-45)-6
15+24-6
39-6
33
b) 72×5-(276-8×9)+50=
360-(276-72)+50
360-204+50
156+50
206
c) 279-179+(50+25×3)-25=
100+(50+75)-25
100+125-25
225-25
200
d) 5×(24×2-40+10)+2000=
5×(48-40+10)+2000
5×(8+10)+2000
5×18+2000
90+2000
2090
e) (238×4-781)-(252-198)=
(952-781)-54
171-54
117
(P.S sper ca te-am ajutat si ca sunt corecte!!)