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Step-1: Add up the hundred place.

400 + 300 = 700

Step two: add the tens place.

80 + 60 = 140

Step-3: add up the ones place.

6 + 5 = 11

Step-4 add all the partial sums to

find answer. 700+140+11=851

400 + 300 = 700

Step two: add the tens place.

80 + 60 = 140

Step-3: add up the ones place.

6 + 5 = 11

Step-4 add all the partial sums to

find answer. 700+140+11=851

100s

Example:

>** Partial Sums Addition Method** < you are here

Everyday mathematics methods

...........................................................................................................................................................................................

left to right

represented by the digits in that column.

together.

page 1 of 2

Add** 4 8 5 + 3 6 6** using the partial sums method.

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10s

1s

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