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Adding Numbers
With Regrouping
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When adding
numbers
ALWAYS
line up place value columns.
hundreds
tens
ones
|
 |
|
547 + 325 =
|
hundreds |
tens |
ones |
| 5 |
4 |
7 |
|
3 |
2 |
5 |
 |
Then add each
column
starting with the
ones
then....tens
then....hundreds |
|
Ones
7 + 5 = 12
Rename 12
as 1 ten +
2 ones.
Place 2 in the
ones column and add
the 1 ten
in the tens column. |
+1
5
4 7
+3 2
5
8 7
2
 |
Let's look at another example. |
468 + 215 =
| |
+1
4
6 8
+ 2
1
5
6
8
3
(8 + 5 = 13,
13 = 1 ten and 3 ones)
|
so,
468 + 215 =
683
More Examples:
+1
+1
+1
755
847
238
+229
+128
+344
984
975
582
REMEMBER:
|
Add
each column
starting with the
ones
then....tens
then....hundreds |
Click on the pencil for practice.
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