Question

Calculeaza : 8+[7+6×(7-4)]-9×2=////25+[10×15÷2-5×(5×4-36÷3)]=/////2×[10+10×(6+3×4)]=///[(25+107)÷3+(811-755)÷2]×4=/////100×9-[62×(7+9÷9-40÷10)]÷8+253=///120+7×[307-816÷(9-5)]-4×26=//////824÷8+[72+6×(100÷5-72÷4)]÷2=////4210-3×[532+14×(218-56)÷4]=/////180÷2+[(50×2÷10+90)+10-25×4]=///

Answer 1

a)=8+[13×3]-18

=8+39-18

=47-18

=29

b)=25+[150:2-5×(20-12)]

=25+[75-5×8]

=25+[70×8]

=25+560

=585

c)=2×[20×(9×4)]

=2×[20×26]

=2×520

=1040

d)=[132÷3+56÷2]×4

=[44+28]×4

=72×4

=288

e)=900-[62×(18÷9+40÷10)]:261

=900-[62×(2+10)]:261

=900-[62×20]:261

=900-1240:261

=900-4.75

=895.25

f)=127×[307-816÷4]-104

=127×[307-204]-104

=127×103-104

=13081-104

=12977

g)=103+[78×(20-18)]:2

=103+[78×2]:2

=103+156:2

=103+78

=25

h)=4207×[546×162:4]

=4207×[88452:4]

=4207×22113

=93029391

i)=90+[(100÷100)+10-25×4]

=90+[1+10-25×4]

=90+[11-100]

=990-100

=890