Multiplication Of Whole Numbers & Factors Worksheet With Answers - Professor Weissman'S Algebra Classroom Page 12
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12Answers to Exercise Set 3
k.
7●7
1a. 6,120
4a. 72
5
b.
1
b.
51,776
b.
35
13a. 1.2.4
3
c.
a
l.
2●2●2●3●5
c.
5,656
c.
60
b.
1,2,4,8
3
2
d.
x
y
15a. All pairs are: 1,12
d.
560
d.
100
c.
1,2,3,4,6,12
2
3
e.
7
2
2,6 and 3,4
e.
5600
d.
1,2,4,8,16
4
f.
56,000
5. Commutative, Associa-
e.
1,2,3,4,6,8,12,24
f.
10
b. 3,4
c. 1,12
tive, Identity (1), Zero (0)
g.
768,000
f.
1,2,3,4,6,9,12,18,36
☺
3
g.
d. 2,6
e. 2,6
h.
42,000
g.
1,2,3,4,6,8,12,16,24
10a. 2(2)(2)(2)(2)=32
6a. Associative
,48
i.
0
16a. All pairs are: 1,18 2,9
b.
(10)(10)(10)(10)(10)=
b.
Identity
h.
1,2,4,5,10,20,25,50,
j.
72
and 3,6
100,000
100
c.
commutative
k.
20
c.
5(5)(2)(2)(2)(2)(2) =
b. 2,9
c. 1,18
d.
zero
800
l.
30
14a. 2●2
m. xy
d.
(0)(0)(0)(0)(0)=0
d. 3,6
d. 2,9
b.
2●2●2
7a. 7=7●1
e.
(1)(1)(1)(1)(1)=1
c.
2●2●3
b. b. 8●9=9●8
2a. 320,000 ; 298,452
d.
2●2●2●2
c. 66●0=0
11a. 343
b.
3,200,000 ;
e.
2●2●2●3
3,263,928
d. (6●8)●11=6●(8●11)
b.
32
f.
2●2●2●2●3
e. ab=ba
c.
1,000,000
3a. 5a
g.
2●2●5●5
d.
72
2
a.
8
8a. No
h.
13
b.
No.
3
12a. A=LW
b.
2
i.
17
b.
35 square inches
5
c.
10
3
c.
24 inches
9a. 5
j.
3●7
d.
25 square inches
Brain Teaser #3 Answer
it's all in how you
What makes this
The men paid $27
phrase the question.
puzzle seem so im-
$30 (what they paid in
there's no missing dol-
The motel got $25
possible?? it's the
the beginning)
lar!!!!
The bellboy got $2
The men paid $27 total.
question they ask
-$5 (amount deducted)
$25 to the manager,
you at the end.
+$3 (amount given
$25 + $2 = $27
and $2 to the bellboy.
back)
There is no missing
=$28
dollar. it's a trick, a
The fact that they also
math trick. here's
originally paid an extra
$28
the answer.
$3 and then got it back
+$2 (amount bellboy
again is entirely irrele-
kept)
vant.
=$30
the three men:
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