Book a Demo
Topics
A
p
p
r
o
x
i
m
a
t
i
o
n
a
n
d
E
r
r
o
r
s
S
i
g
n
i
f
i
c
a
n
t
F
i
g
u
r
e
s
I
n
t
r
o
d
u
c
t
i
o
n
t
o
s
c
i
e
n
t
i
f
i
c
n
o
t
a
t
i
o
n
S
c
i
e
n
t
i
f
i
c
n
o
t
a
t
i
o
n
a
n
d
v
e
r
y
l
a
r
g
e
a
n
d
v
e
r
y
s
m
a
l
l
n
u
m
b
e
r
s
U
s
e
a
c
a
l
c
u
l
a
t
o
r
f
o
r
s
c
i
e
n
t
i
f
i
c
n
o
t
a
t
i
o
n
S
c
i
e
n
t
i
f
i
c
n
o
t
a
t
i
o
n
c
a
l
c
u
l
a
t
i
o
n
s
u
s
i
n
g
i
n
d
e
x
l
a
w
s
A
c
c
u
r
a
c
y
i
n
m
e
a
s
u
r
e
m
e
n
t
(
p
e
r
c
e
n
t
a
g
e
e
r
r
o
r
)
E
s
t
i
m
a
t
i
n
g
P
e
r
c
e
n
t
a
g
e
s
E
s
t
i
m
a
t
i
o
n
w
i
t
h
D
e
c
i
m
a
l
s
(
I
n
v
e
s
t
i
g
a
t
i
o
n
)
Lesson
E
s
t
i
m
a
t
i
o
n
a
n
d
R
o
u
n
d
i
n
g
C
h
e
c
k
r
e
a
s
o
n
a
b
l
e
n
e
s
s
o
f
c
a
l
c
u
l
a
t
i
o
n
s
Log in
Sign up
Book a Demo
Hong Kong
Stage 1 - Stage 3
Estimation with Decimals (Investigation)
Lesson
Interactive practice questions
There are no interactive problems for this subtopic
What is Mathspace
About Mathspace