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N
u
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b
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m
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d
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M
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(
1
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M
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p
l
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d
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1
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M
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(
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C
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m
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1
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M
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d
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m
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)
(
1
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F
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n
d
q
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t
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n
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(
1
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x
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N
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b
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s
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d
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d
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b
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(
1
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E
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P
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d
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s
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(
1
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x
1
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)
P
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p
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t
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s
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f
m
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t
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p
l
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c
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n
(
1
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x
1
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M
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M
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2
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M
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2
t
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M
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d
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b
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b
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a
3
d
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g
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n
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b
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M
u
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t
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p
l
y
3
n
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b
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s
t
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g
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t
h
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D
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v
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d
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a
2
d
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g
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n
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m
b
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b
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a
1
d
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b
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a
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a
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a
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m
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d
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D
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d
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a
2
d
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n
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b
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b
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a
1
d
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g
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b
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D
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v
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d
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a
3
d
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d
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D
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v
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4
d
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b
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b
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a
1
d
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D
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b
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b
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a
1
d
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b
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Lesson
Practice
D
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v
i
d
e
a
3
d
i
g
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t
n
u
m
b
e
r
b
y
a
1
d
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g
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b
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d
d
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b
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d
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g
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t
n
u
m
b
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s
E
x
t
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n
d
m
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t
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p
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c
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v
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s
t
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g
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s
t
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l
a
r
g
e
r
n
u
m
b
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s
D
i
v
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d
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v
a
r
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o
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s
n
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m
b
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s
b
y
s
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g
l
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d
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g
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t
s
S
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d
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v
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s
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o
n
p
r
o
b
l
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m
s
p
r
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s
e
n
t
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d
w
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t
h
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n
c
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n
t
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x
t
s
S
o
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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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p
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b
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m
s
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v
o
l
v
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n
g
o
b
j
e
c
t
s
o
r
w
o
r
d
s
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Stage 1
Divide a 4 digit number by a 1 digit number
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