A lot of things in real life make use of whole numbers, examples are: tv channels, postal codes, telephone no., car plate number, analog clock, no. on keyboard, day, date and year, football jersey, etc...
No. notation and place value up to 10mil: Banks statement, distance, singapore mobile no.
Comparing and ordering no. up to 100k: The no. of seconds in an hour, the no. of days in a year, car registration no. in singapore.
Addition and subtraction of no. up to 3 digits: My grocery spent on a receipt.
Addition and subtraction of no. up to 4 digits: Buying 4D.
Multiplication and division of a 2 digit no. by a 1 digit no.: My expenditure per week.
Multiplication and division of a 4 digit no. by a 1 digit no.: My savings multiply by the no. of yrs.
Multiplication and division by 10, 100 and 1000: How long it will take for me to become a millionaire.
Factors and multiples: Solving a math question.
Approximation and estimation: Estimating the time needed to travel from home to school.
Order of operations and use of brackets: In my PSLE.
Use of calculators: Allows people to calculate efficiently, accurately and for double-checking. When overseas, we can use the calculator to convert currencies.
Done by Shamus, Shawn, Jonathan