a,[120-12*5]:6
=[120-60]:6
=60:6
=10
b,494-[75+35:5]*2
=494-[75+7]*2
=494-82*2
=494-164
=330
c,1/4+[3/4:1/2]*5/6
=1/4+3/2*5/6
=1/4+5/4
=3/3
d,[360-15*6]:5
=[360-90]:5
=270:5
=54
a) (120-12*5):6= (120-60):6=60:6=10
b) 494-(75+35:5)*2= 494-(75+7)*2=494-82*2=494-164=330
c)1/4+(3/4:1/2)*5/6=1/4+3/2*5/6=1/4+5/4=6/4=3/2
d)(360-15*6):5=(360-90):5=270:5=54
a) ( 120 - 12 x 5 ) : 6
= ( 120 - 60 ) : 6
= 60 : 6
= 10
b) 494 - ( 75 + 35 : 5 ) x 2
= 494 - ( 75 + 7 ) x 2
= 494 - 82 x 2
= 494 - 164
= 330
c) 1/4 + ( 3/4 : 1/2 ) x 5/6
= 1/4 + 3/2 x 5/6
= 1/4 + 5/4
= 6/4 = 3/2
d) ( 360 - 15 x 6 ) : 5
= ( 360 - 90 ) : 5
= 270 : 5
= 54
\(\left(120-12\times5\right):6=\left(120-60\right):6=60:6=10\)
\(494-\left(75+35:5\right).2=494-\left(75+7\right).2=494-82.2=494-164=330\)
\(\left(360-15.6\right):5=\left(360-90\right):5=270:5=54\)
\(a\)) \(\left(120-12x5\right):6\)\(=\)\(\left(120-60\right):6\)\(=\)\(60:6=10\)
b) \(494-\left(75+35:5\right)\)x \(2\)\(=494-\left(75+7\right)\)x \(2\)\(=494-82\)x \(2\)\(=494-164=330\)
c)\(\frac{1}{4}+\left(\frac{3}{4}:\frac{1}{2}\right)\)x \(\frac{5}{6}\)\(=\frac{1}{4}+\frac{3}{2}\)x \(\frac{5}{6}\)\(=\frac{1}{4}+\frac{5}{4}=\frac{6}{4}=\frac{3}{2}\)
d)\(\left(360-15x6\right):5\)\(=\left(360-90\right):5=270:5=54\)
