24
UNIT 2 : Addition
Example:
In a box there are 1758 red pencils and 1624 blue pencils.
How many pencils are there in the box?
Read and understand the question.
Underline the key details.
In a box there are 1758 red pencils and 1624 blue pencils. How many pencils
are there in the box?
What is the question?
How many pencils are there in the box?
Show the relationship. (You can also use a diagram)
What steps are needed?
To nd the number of pencils in the box (1758 + 1624).
Perform the calculation:
There are 3382 pencils in the box.
Check if the answer is correct.
1758
?
1624
red pencils blue pencils
The relationship can be represented as follows:
?
1758 1624
1758
1624
+
3382
(red pencils)
(blue pencils)
(total)
11
Tip: Solving word problem