# Word Problems on Number Operations

A number is a figure or a value to denote the count or quantity of something. The counting numbers or natural numbers include the numerals 1, 2, 3, 4, etc and are the fundamental of a number. Arithmetic is the elementary branch which studies about numbers, their properties, and arithmetical operations.

There are basically four operations: additions (+), subtraction (-), multiplication (×) and division (÷). Each operation helps us to calculate how more or less an object than the other. Let’s practice how to solve word problems using these arithmetical operations.

## Word Problems Examples

Example 1: Mr Lee won a lottery of cash prize \$157 800. He deposited the amount in his bank account. If he had \$45 000 in his account, what is his current bank balance? Solution: We have to find the total amount in Mr Lee’s bank account.

Given,

Amount of cash Mr Lee won by lottery = \$157 800

Amount Mr Lee had before winning lottery= \$45 000

Total amount Mr Lee have after winning lottery= \$157 800 + \$45 000 = \$202 800

Mr Lee has \$202 800 as his current balance.

Example 2: Mdm Tan bought a car for \$375 000. After three years she sold her car and bought a new car for \$830 000. How much more has Mdm Tan paid for her new car?

Solution: We have to find the price difference.

Given,

Cost of old car = \$375 000

Cost of new car = \$830 000

Price difference between new car and old car = \$830 000 – \$375 000 = \$455 000

Mdm Tan has paid \$455 000 more for her new car.

Example 3: Peter is a bookworm. He has a home library and he arranges 483 books per shelves. If there are 32 shelves like this, how many books are there in Peter’s library? Solution:

Given,

Total no. of shelves = 32

No. of books per shelve = 483

Total no. of books in the library = 483 x 32 = 15456

Peter has 15456 books in his library.

Example 4: A shoe factory manufactured 66250 shoes in 250 days. How many shoes did it manufacture per day?

Solution:

Given,

Total no. of shoes manufactured= 66250

Total no. of days taken to manufacture 66250 shoes = 250 days

No. of shoes manufactured per day= 66250 ÷ 250 Hence, factory-produced 265 shoes per day.