This document discusses addition of whole numbers. It defines addition as bringing two or more numbers together to make a new total sum. The addends are the numbers being added and the plus sign is the addition symbol. When adding, digits are added from right to left and carrying is used when the sum is greater than 9. Word problems can be solved using the ESA method which stands for writing the Equation, finding the Solution, and stating the Answer. Key words that indicate addition is needed include add, altogether, both, more than, in all, plus, sum, total, combined, and join.
ADDITION
It is bringingof two or more
numbers (or things) together to
make a new total
What is Addition?
3.
Parts of AdditionEquation
1,662
+ 1,952
2,614
Addends – these
are the numbers
added together
Sum – the answer in an
addition equation
Plus – addition sy
mbol
4.
Example
495 + 372=N
495
+ 372
867
STEPS
1) Start adding from the ONES digits
2) If the answer is 10 or above, retain
the ONES digit and carry the TENS on
e on to the next
digits to be added.
3) Repeat the process to the
last digits to be added.
1
Steps
1) Read andunderstand the
problem carefully.
2) Identify the operation/s needed
to solve the problem.
3) Solve the problem by using ESA
Method.
12.
To identify theoperation needed,
we need to look for key words:
For addition:
Add Entire cost
Altogether Increased by
Both More/ More than
In all Plus
Sum Total cost/ Total
Combined Join
13.
Example
Rigo bought apair of shoes for 3,599
pesos. He also bought a shirt for 747
pesos, and a cap for 569 pesos. What
is the total cost of the things he
bought?
Try this!
In threedays, Vito was able to write
3,562 words, 4,281 words, and 983
words respectively for his upcoming
novel. What is the number of words
written altogether?