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N
u
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m
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M
u
l
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p
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c
a
t
i
o
n
a
n
d
r
e
p
e
a
t
e
d
a
d
d
i
t
i
o
n
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1
,
2
,
3
,
5
,
1
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)
I
n
t
e
r
p
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e
t
p
r
o
d
u
c
t
s
(
1
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2
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3
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5
,
1
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)
A
r
r
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y
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r
o
d
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c
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M
u
l
t
i
p
l
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a
t
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o
n
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d
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o
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o
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1
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3
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5
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1
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M
u
l
t
i
p
l
i
c
a
t
i
o
n
a
n
d
d
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v
i
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i
o
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u
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n
g
a
r
r
a
y
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1
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3
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5
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1
0
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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
(
1
,
2
,
3
)
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
(
5
,
1
0
)
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
(
1
,
2
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3
,
5
,
1
0
)
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
t
a
b
l
e
s
(
2
,
3
,
5
,
1
0
)
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
(
t
u
r
n
a
r
o
u
n
d
s
a
n
d
f
a
c
t
f
a
m
i
l
i
e
s
)
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0
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1
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2
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3
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5
,
1
0
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N
u
m
b
e
r
s
e
n
t
e
n
c
e
s
a
n
d
w
o
r
d
p
r
o
b
l
e
m
s
(
1
,
2
,
3
,
5
,
1
0
)
E
x
t
e
n
d
i
n
g
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
c
a
l
c
u
l
a
t
i
o
n
s
u
s
i
n
g
p
a
t
t
e
r
n
s
(
1
,
2
,
3
,
5
,
1
0
)
P
r
o
b
l
e
m
s
o
l
v
i
n
g
w
i
t
h
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
(
1
,
2
,
3
,
5
,
1
0
)
H
o
w
d
o
w
e
k
n
o
w
i
f
t
h
e
c
a
l
c
u
l
a
t
o
r
i
s
c
o
r
r
e
c
t
?
(
I
n
v
e
s
t
i
g
a
t
i
o
n
)
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
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
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
i
v
i
s
i
o
n
u
s
i
n
g
a
r
r
a
y
s
(
1
0
x
1
0
)
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
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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
l
t
i
p
l
i
c
a
t
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o
n
a
n
d
d
i
v
i
s
i
o
n
p
r
o
b
l
e
m
s
(
3
,
6
,
7
,
9
)
F
i
n
d
u
n
k
n
o
w
n
s
i
n
m
u
l
t
i
p
l
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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
(
m
i
x
e
d
)
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
t
a
b
l
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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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v
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s
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(
t
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n
d
s
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n
d
f
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c
t
f
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m
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l
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)
(
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
e
r
s
e
n
t
e
n
c
e
s
a
n
d
w
o
r
d
p
r
o
b
l
e
m
s
(
1
0
x
1
0
)
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
b
y
1
0
E
x
t
e
n
d
i
n
g
m
u
l
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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n
c
a
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c
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l
a
t
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o
n
s
u
s
i
n
g
p
a
t
t
e
r
n
s
(
1
0
x
1
0
)
P
r
o
b
l
e
m
s
o
l
v
i
n
g
w
i
t
h
m
u
l
t
i
p
l
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c
a
t
i
o
n
a
n
d
d
i
v
i
s
i
o
n
(
1
0
x
1
0
)
P
r
o
p
e
r
t
i
e
s
o
f
m
u
l
t
i
p
l
i
c
a
t
i
o
n
(
1
0
x
1
0
)
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
5
x
1
5
)
I
n
t
e
r
p
r
e
t
i
n
g
p
r
o
d
u
c
t
s
(
1
5
x
1
5
)
A
r
r
a
y
s
a
s
p
r
o
d
u
c
t
s
(
1
5
x
1
5
)
M
u
l
t
i
p
l
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c
a
t
i
o
n
a
n
d
d
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v
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s
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n
u
s
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n
g
g
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p
s
(
1
5
x
1
5
)
M
u
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t
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p
l
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c
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o
n
a
n
d
d
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s
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n
u
s
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g
a
r
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s
(
1
5
x
1
5
)
M
u
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p
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c
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n
a
n
d
d
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v
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s
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n
t
a
b
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s
(
1
5
x
1
5
)
F
i
n
d
q
u
o
t
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e
n
t
s
(
1
5
x
1
5
)
N
u
m
b
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s
e
n
t
e
n
c
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s
a
n
d
w
o
r
d
p
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b
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m
s
(
1
5
x
1
5
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M
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a
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d
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1
0
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1
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0
E
x
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d
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m
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g
p
a
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s
(
1
5
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1
5
)
P
r
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b
l
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m
s
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v
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n
g
w
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m
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t
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p
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c
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o
n
a
n
d
d
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v
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s
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n
(
1
5
x
1
5
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D
i
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t
r
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b
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v
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p
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p
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r
t
y
f
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r
m
u
l
t
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p
l
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c
a
t
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n
(
1
0
x
1
0
)
U
s
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d
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r
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b
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t
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p
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p
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y
(
1
0
x
1
0
)
U
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d
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M
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UK Primary (3-6)
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Multiply various single and double digit numbers
Lesson
Practice
Interactive practice questions
Find
$4\times52$
4
×
5
2
.
Easy
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Find
$87\times3$
8
7
×
3
.
Find
$3\times99$
3
×
9
9
.
Find
$3\times20$
3
×
2
0
.
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