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N
u
m
b
e
r
(
m
u
l
t
/
d
i
v
)
M
u
l
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
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)
I
n
t
e
r
p
r
e
t
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n
g
p
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o
d
u
c
t
s
(
1
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x
1
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)
A
r
r
a
y
s
a
s
p
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o
d
u
c
t
s
(
1
0
x
1
0
)
Lesson
Practice
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
u
s
i
n
g
g
r
o
u
p
s
(
1
0
x
1
0
)
M
u
l
t
i
p
l
i
c
a
t
i
o
n
a
n
d
d
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v
i
s
i
o
n
u
s
i
n
g
a
r
r
a
y
s
(
1
0
x
1
0
)
C
o
m
p
l
e
t
e
m
u
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t
i
p
l
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c
a
t
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o
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a
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d
d
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v
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s
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o
n
f
a
c
t
s
i
n
a
t
a
b
l
e
(
1
0
x
1
0
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M
u
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t
i
p
l
i
c
a
t
i
o
n
a
n
d
d
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v
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s
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o
n
(
t
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n
a
r
o
u
n
d
s
a
n
d
f
a
c
t
f
a
m
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l
i
e
s
)
(
1
0
x
1
0
)
F
i
n
d
q
u
o
t
i
e
n
t
s
(
1
0
x
1
0
)
N
u
m
b
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r
s
e
n
t
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n
c
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s
a
n
d
w
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d
p
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b
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(
1
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x
1
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x
t
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d
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m
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d
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(
1
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1
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P
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b
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d
d
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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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m
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(
1
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x
1
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Hong Kong
Stage 1
Arrays as products (10x10)
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