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Topics
N
u
m
b
e
r
(
o
r
d
e
r
a
n
d
p
l
a
c
e
v
a
l
u
e
)
N
u
m
b
e
r
s
,
w
o
r
d
s
a
n
d
s
y
m
b
o
l
s
(
1
0
0
0
0
t
o
5
0
0
0
0
)
O
r
d
e
r
n
u
m
b
e
r
s
(
1
0
0
0
0
t
o
5
0
0
0
0
)
P
a
r
t
i
t
i
o
n
N
u
m
b
e
r
s
(
1
0
0
0
0
t
o
5
0
0
0
0
)
C
o
n
s
t
r
u
c
t
n
u
m
b
e
r
s
(
1
0
0
0
0
t
o
5
0
0
0
0
)
I
d
e
n
t
i
f
y
o
d
d
a
n
d
e
v
e
n
n
u
m
b
e
r
s
N
u
m
b
e
r
s
,
w
o
r
d
s
a
n
d
s
y
m
b
o
l
s
(
5
0
0
0
0
t
o
9
0
0
0
0
)
O
r
d
e
r
n
u
m
b
e
r
s
(
5
0
0
0
0
t
o
9
0
0
0
0
)
P
a
r
t
i
t
i
o
n
n
u
m
b
e
r
s
(
5
0
0
0
0
t
o
9
0
0
0
0
)
C
o
n
s
t
r
u
c
t
n
u
m
b
e
r
s
(
5
0
0
0
0
t
o
9
0
0
0
0
)
P
r
o
p
e
r
t
i
e
s
o
f
o
d
d
a
n
d
e
v
e
n
n
u
m
b
e
r
s
R
o
u
n
d
n
u
m
b
e
r
s
(
t
o
1
0
'
s
o
r
1
0
0
'
s
)
Lesson
Practice
M
a
k
i
n
g
N
u
m
b
e
r
s
w
i
t
h
N
u
m
b
e
r
C
a
r
d
s
(
I
n
v
e
s
t
i
g
a
t
i
o
n
)
N
u
m
b
e
r
s
,
w
o
r
d
s
a
n
d
s
y
m
b
o
l
s
(
9
0
0
0
0
t
o
9
0
0
0
0
0
)
N
u
m
b
e
r
s
,
w
o
r
d
s
a
n
d
s
y
m
b
o
l
s
(
m
i
l
l
i
o
n
s
)
O
r
d
e
r
i
n
g
n
u
m
b
e
r
s
(
9
0
0
0
0
t
o
m
i
l
l
i
o
n
)
P
a
r
t
i
t
i
o
n
n
u
m
b
e
r
s
(
9
0
0
0
0
t
o
m
i
l
l
i
o
n
)
C
o
n
s
t
r
u
c
t
n
u
m
b
e
r
s
(
9
0
0
0
0
t
o
m
i
l
l
i
o
n
s
)
C
o
m
p
a
r
e
n
u
m
b
e
r
s
(
9
0
0
0
0
t
o
m
i
l
l
i
o
n
s
)
R
o
u
n
d
n
u
m
b
e
r
s
(
t
o
1
0
0
0
'
s
)
R
o
u
n
d
l
a
r
g
e
n
u
m
b
e
r
s
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India
Class VI
Round numbers (to 10's or 100's)
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