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Double Digit Addition
Mathematics, Grade 3
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Study Guide Double Digit Addition Mathematics, Grade 3
DOUBLE
DIGIT
ADDITION
What
Is
Double
Digit
Addition?
•
Double
digit
addition
is
taking
a
two
digit
number
(ex.
14)
and
adding
it
to
another
two
digit
number
(ex.
25).
•
The
answer
of
these
two
addends
is
known
as
the
sum.
14
(addend)
+25
(addend)
39
(sum)
How
to
Do
Double
Digit
Addition:
•
When
adding
numbers
with
two
digits,
you
begin
by
adding
the
ones
place
first.
25
+
24
9
•
The
second
step
is
to
add
the
numbers
in
the
tens
place.
25
+
24
49
Try
This!
Try
these
addition
problems.
34
82
27
41
86
55
+22
+12
+32
+28
+12
+34
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