Question

Ex:21 plsssssss repede

Answer 1

a)42+360÷4=42+90=132

b)9×15-3=135-3=132

c)45÷(1+3+5)+16×2=45÷9+32=5+32

=37

d)(10+2×3+7)×10=(10+6+7)×10=23×10

=230

e)2×(437-105÷7)=2×(437-15)=2×422

=844

f)84-(100-6×9)+(5×8-12÷3)

=84-(100-54)+(40-4)

=84-36+36=48+36=84

g)12÷[6+(28-68÷4)-5]

=12÷[6+(28-17)-5]

=12÷(6+11-5)

=12÷12=1

h)1354+2000-[11+(9×40-6×11)÷7]×20

=1354+2000-[11+(360-66)÷7]×20

=1354+2000-(11+294÷7)×20

=1354+2000-(11+42)×20

=1354+2000-53×20

=1354+2000-1060

=3354-1060=2294

i)2+2×[2+2×(2+2×2)×2]

=2+2×[2+2×(2+4)×2]

=2+2×(2+2×6×2)

=2+2×(2+12×2)

=2+2×(2+24)

=2+2×26

=2+52

=54

Sper că te-am ajutat! =^_^=