11.
a. =5*4=20
b.=4*5=20
c.=6*2=12
d.=2*5*7=70
e.-3 *5*2= -30
f.=-4 * -2 * 5 = 8*5=40
12.
a.8*5=40
b.27*2=54
c.6/27=2/9
d.4/8=1/2
e.27/15=1 3/4
f.1/40
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Verified answer
11.
a. =5*4=20
b.=4*5=20
c.=6*2=12
d.=2*5*7=70
e.-3 *5*2= -30
f.=-4 * -2 * 5 = 8*5=40
12.
a.8*5=40
b.27*2=54
c.6/27=2/9
d.4/8=1/2
e.27/15=1 3/4
f.1/40