Whole numbers

Whole numbers

1. 0,1,2,3...

2. Place value

   • ones, tens, hundreds...

3. Value of digit

   • 1,10,100...

4. Round off

   • digit to the right<5
     • retain the digit
   • digit to the right=5, >5
     • add 1 to the digit
   • replace digits on the right with 0s

5. mathematical operations

   • addtion
   • subtraction
   • multiplication
     • repeated addition
   • division
     • divisor=0
       • undefined

6. combined operations

   • Brackets( ) first
   • multiplication and division next
   • addition and subtraction last