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M
u
l
t
i
p
l
i
c
a
t
i
o
n
a
n
d
D
i
v
i
s
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F
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d
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k
n
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w
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n
m
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i
o
n
a
n
d
d
i
v
i
s
i
o
n
p
r
o
b
l
e
m
s
(
5
,
1
0
)
M
u
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t
i
p
l
i
c
a
t
i
o
n
a
s
r
e
p
e
a
t
e
d
a
d
d
i
t
i
o
n
(
1
0
x
1
0
)
I
n
t
e
r
p
r
e
t
i
n
g
p
r
o
d
u
c
t
s
(
1
0
x
1
0
)
A
r
r
a
y
s
a
s
p
r
o
d
u
c
t
s
(
1
0
x
1
0
)
M
u
l
t
i
p
l
i
c
a
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i
o
n
a
n
d
d
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s
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n
u
s
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n
g
g
r
o
u
p
s
(
1
0
x
1
0
)
M
u
l
t
i
p
l
i
c
a
t
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o
n
a
n
d
d
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s
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n
u
s
i
n
g
a
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r
a
y
s
(
1
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x
1
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)
F
i
n
d
u
n
k
n
o
w
n
s
i
n
m
u
l
t
i
p
l
i
c
a
t
i
o
n
a
n
d
d
i
v
i
s
i
o
n
p
r
o
b
l
e
m
s
(
0
,
1
,
2
,
4
,
8
)
F
i
n
d
u
n
k
n
o
w
n
s
i
n
m
u
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n
a
n
d
d
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v
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s
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o
n
p
r
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b
l
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m
s
(
3
,
6
,
7
,
9
)
F
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n
d
u
n
k
n
o
w
n
s
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m
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d
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s
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p
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b
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m
s
(
m
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x
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d
)
C
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m
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l
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d
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f
a
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t
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n
a
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a
b
l
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(
1
0
x
1
0
)
M
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t
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p
l
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c
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)
(
1
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1
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F
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n
d
q
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o
t
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t
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(
1
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1
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)
N
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m
b
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s
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c
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m
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(
1
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1
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M
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l
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c
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d
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b
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1
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P
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m
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p
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c
a
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(
1
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x
1
0
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M
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p
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c
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a
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d
d
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b
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1
0
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1
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0
D
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b
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n
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D
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d
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2
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1
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2
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1
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D
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D
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Lesson
Practice
D
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a
3
d
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m
b
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b
y
a
1
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d
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d
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E
x
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D
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M
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p
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v
a
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s
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,
2
a
n
d
3
d
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b
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s
D
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v
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a
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i
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s
4
d
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b
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2
d
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Level 3
Divide a 4 digit number by a 1 digit number
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