Question

(7x7+7:7)x7 (20:2+28)x2 (18x2+18):6 196-3x(89-45) 1000-(35+60x2)+40 999+(10:2x4)-501 50+(40+80x100)-50

Answer 1

(7×7+7:7)×7=
=(49+1)×7
=50×7
=350
(20:2+28)×2=
=(10+28)×2
=38×2
=76
(18×2+18):6=
=(36+18):6
=54:6
=9
196-3×(89-45)=
=196-3×44
=196-132
=64
1.000-(35+60×2)+40=
=1.000-(35+120)+40
=1.000-155+40
=845+40
=885
999+(10:2×4)-501=
=999+(5×4)-501
=999+20-501
=1.019-501
=518
50+(40+80×100)-50=
=50+(40+8.000)-50
=50+8.040-50
=8.090-50
=8.040
Sper ca te-am ajutat!