Adding or Subtracting Multiples of 10
In grade four there is an awesome skill to learn after learning place value of larger numbers. This skill is to quickly adding or subtracting the multiples of 10. For example, adding 10 to a given number, adding 1 000 to a given number or subtracting 100 000 from a given number.
Following are the activity sheets I prepared to master this key skill;
