Adding Without Regrouping

Addition is the process of putting
together two sets of things or people
to form a new set.

65
GIRLS
83
BOYS
148
PUPILS
=
The set of boys and the set of
girls form a new set that is composed
of all pupils in the class.

65 + 82=148
Mathematical
Sentence:

65 + 82=148
Addends Sum
Any numbers
that are added
together.

65 + 82=148
Addends Sum
Any numbers
that are added
together.
The result of
adding two or
more numbers.

How to add the four- to
five- digit numbers
without regrouping?

Step 1:
Write the addends in
columns.

31 451+42 537+16 000=
31 451
42 537
+16 000

Step 2:
Begin adding the ones then the tens, the
hundreds, the thousands, and so on, up to
the greatest place value.

a. Add the ones.
31 451
42 537
+16 000
8

b. Add the tens.
31 451
42 537
+16 000
88

c. Add the hundreds.
31 451
42 537
+16 000
988

d. Add the thousands.
31 451
42 537
+16 000
9 988

e. Add the ten thousands.
31 451
42 537
+16 000
89 988

31 451
42 537
+16 000
89 988
Addends
Sum

Step 3:
Check the sum by adding
up.

Addends
8 9 9 8 8
3 1 4 5 1
4 2 5 3 7
1 6 0 0 0
tth th h t o

13 650+4 213+1036+30100=
13 650
4 213
1036
+30100

13 650
4 213
1 036
+30 100
999

13 650
4 213
1 036
+30 100
8 999

13 650
4 213
1 036
+30 100
48 999

4 321+2 230+11 203+42 113=
4 321
2 230
11 203
+42 113

4 321
2 230
11 203
+42 113
59 867

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