6.
a) 10-6+8= 12
10-(6+8)= -4
b) 10-5×6= -20
(10-5)×6 = 30
c)8×7-6=50
8×(7-6)= 8
d)24:6× -2= -8
24:(6×-2)= 24 : -12= -2
e)-12+4:2-8= -12+2-8=-10-8= -18
(-12+4):2-8= -8:2-8= -4-8=-12
f)11-8:4-10=11-2-10=9-10=-1
(11-8):(4-10)= 3:-6= -½
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6.
a) 10-6+8= 12
10-(6+8)= -4
b) 10-5×6= -20
(10-5)×6 = 30
c)8×7-6=50
8×(7-6)= 8
d)24:6× -2= -8
24:(6×-2)= 24 : -12= -2
e)-12+4:2-8= -12+2-8=-10-8= -18
(-12+4):2-8= -8:2-8= -4-8=-12
f)11-8:4-10=11-2-10=9-10=-1
(11-8):(4-10)= 3:-6= -½