Question

Efectuati respectand mai intai parantezele: 150+230:10-(21x15-15):2=?

18x10:6-(200-20):9+81:9-2=?

202+202:202+202x200-20(2-2)=?

(636:3-448:4+696:3+268:2)2x5=?

Answer 1

150+230:10-(315-15):2
150+230:10-300:2
150+23-150
173-150
23



18x10:6-(200-20):9+81:9-2
180:6-180:9+9-2
30-20+7
10+7
17



202+202:202+202x200-20(2-2)
202+1+40400-20??????

Dupa 20 nu exista niciun semn

Answer 2

150+230:10-(21×15-15):2
=150+230:10-(315-15):2
=150+230:10-300:2
=150+23-300:2
=150+23-150
=173-150
=23

18×10:6-(200-20):9+81:9-2
=18×10:6-180:9+81:9-2
=180:6-180:9+81:9-2
=30-180:9+81:9-2
=30-20+81:9-2
=30-20+9-2
=10+9-2
=19-2
=17

202+202:202+202×
200-20 (2-2)
=202+202:202+202×
200-20-0
=202+1+202×200-20-0
=202+1+40400-20-0
=203+40400-20-0
=40603-20-0
=40583-0
=40583

(636:3-448:4+696:3+
268:2) 2×5
=(212-448:4+696:3+
268:2) 2×5
=(212-112+696:3+268:2) 2×5
=(212-112+232+268:2) 2×5
=(212-112+232+134)2×5
=(100+232+134) 2×5
=(332+134) 2×5
=466+2×5
=466+10
=476