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.
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.
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?
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?
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.