Book a Demo
Topics
N
u
m
b
e
r
P
a
t
t
e
r
n
s
W
r
i
t
e
n
u
m
b
e
r
s
e
n
t
e
n
c
e
s
f
r
o
m
w
o
r
d
p
r
o
b
l
e
m
s
(
a
d
d
/
s
u
b
)
W
r
i
t
e
n
u
m
b
e
r
s
e
n
t
e
n
c
e
s
f
r
o
m
w
o
r
d
p
r
o
b
l
e
m
s
(
m
u
l
t
/
d
i
v
)
W
r
i
t
e
n
u
m
b
e
r
s
e
n
t
e
n
c
e
s
f
r
o
m
w
o
r
d
p
r
o
b
l
e
m
s
(
m
i
x
e
d
)
S
o
l
v
e
w
o
r
d
p
r
o
b
l
e
m
s
u
s
i
n
g
n
u
m
b
e
r
s
e
n
t
e
n
c
e
s
(
a
d
d
/
s
u
b
)
S
o
l
v
e
w
o
r
d
p
r
o
b
l
e
m
s
u
s
i
n
g
n
u
m
b
e
r
s
e
n
t
e
n
c
e
s
(
m
u
l
t
/
d
i
v
)
S
o
l
v
e
w
o
r
d
p
r
o
b
l
e
m
s
u
s
i
n
g
n
u
m
b
e
r
s
e
n
t
e
n
c
e
s
(
m
i
x
e
d
)
C
r
e
a
t
e
a
n
d
c
o
n
t
i
n
u
e
f
r
a
c
t
i
o
n
p
a
t
t
e
r
n
s
(
a
d
d
/
s
u
b
)
Lesson
Practice
C
o
n
t
i
n
u
e
d
e
c
i
m
a
l
p
a
t
t
e
r
n
s
u
s
i
n
g
m
o
d
e
l
s
C
o
n
t
i
n
u
e
f
r
a
c
t
i
o
n
p
a
t
t
e
r
n
s
u
s
i
n
g
m
o
d
e
l
s
P
r
o
b
l
e
m
s
w
i
t
h
p
a
t
t
e
r
n
s
w
i
t
h
w
h
o
l
e
n
u
m
b
e
r
s
F
i
b
o
n
a
c
c
i
P
a
t
t
e
r
n
(
I
n
v
e
s
t
i
g
a
t
i
o
n
)
P
r
o
b
l
e
m
s
w
i
t
h
p
a
t
t
e
r
n
s
w
i
t
h
r
a
t
i
o
n
a
l
n
u
m
b
e
r
s
D
e
c
i
m
a
l
p
a
t
t
e
r
n
s
w
i
t
h
t
e
n
t
h
s
(
a
d
d
/
s
u
b
)
D
e
c
i
m
a
l
s
p
a
t
t
e
r
n
s
w
i
t
h
h
u
n
d
r
e
d
t
h
s
(
a
d
d
/
s
u
b
)
F
r
a
c
t
i
o
n
p
a
t
t
e
r
n
s
w
i
t
h
t
e
n
t
h
s
a
n
d
h
u
n
d
r
e
d
t
h
s
(
a
d
d
/
s
u
b
)
P
a
t
t
e
r
n
s
w
i
t
h
t
e
n
t
h
s
a
n
d
h
u
n
d
r
e
d
t
h
s
(
a
d
d
/
s
u
b
)
R
e
v
i
e
w
o
f
w
h
o
l
e
n
u
m
b
e
r
p
a
t
t
e
r
n
s
I
d
e
n
t
i
f
y
a
n
d
d
e
s
c
r
i
b
e
t
y
p
e
s
o
f
p
a
t
t
e
r
n
s
f
r
o
m
t
a
b
l
e
s
o
r
g
r
a
p
h
s
R
e
p
r
e
s
e
n
t
r
e
l
a
t
i
o
n
s
h
i
p
s
u
s
i
n
g
t
a
b
l
e
s
a
n
d
d
e
s
c
r
i
p
t
i
o
n
s
W
r
i
t
i
n
g
e
q
u
a
t
i
o
n
s
w
i
t
h
u
n
k
n
o
w
n
s
W
r
i
t
i
n
g
e
q
u
a
t
i
o
n
s
w
i
t
h
u
n
k
n
o
w
n
s
G
e
n
e
r
a
l
i
s
i
n
g
p
a
t
t
e
r
n
s
w
i
t
h
d
e
c
i
m
a
l
s
i
n
t
e
n
t
h
s
G
e
n
e
r
a
l
i
s
i
n
g
p
a
t
t
e
r
n
s
w
i
t
h
d
e
c
i
m
a
l
s
i
n
h
u
n
d
r
e
d
t
h
s
G
e
n
e
r
a
l
i
s
i
n
g
p
a
t
t
e
r
n
s
w
i
t
h
f
r
a
c
t
i
o
n
s
i
n
t
e
n
t
h
s
o
r
h
u
n
d
r
e
d
t
h
s
G
e
n
e
r
a
l
i
s
i
n
g
p
a
t
t
e
r
n
s
u
s
i
n
g
t
e
n
t
h
s
o
r
h
u
n
d
r
e
d
t
h
s
W
r
i
t
e
m
u
l
t
i
-
s
t
e
p
n
u
m
b
e
r
s
e
n
t
e
n
c
e
s
f
r
o
m
d
e
s
c
r
i
p
t
i
o
n
s
G
e
n
e
r
a
t
e
p
a
t
t
e
r
n
s
f
r
o
m
r
u
l
e
s
P
i
c
t
o
r
i
a
l
R
e
p
r
e
s
e
n
t
a
t
i
o
n
s
o
f
A
l
g
e
b
r
a
C
o
m
p
o
n
e
n
t
s
i
n
a
n
e
x
p
r
e
s
s
i
o
n
A
l
g
e
b
r
a
i
c
E
x
p
r
e
s
s
i
o
n
s
W
o
r
d
e
d
P
r
o
b
l
e
m
s
A
l
g
e
b
r
a
i
c
E
q
u
a
t
i
o
n
s
Log in
Sign up
Book a Demo
Hong Kong
Stage 2
Create and continue fraction patterns (add/sub)
Lesson
Practice
Lesson
Share
What is Mathspace
About Mathspace
