Substitution

Lots of examples of substituting values into algebraic expressions. This video is to help you do the online, self-marking exercise which can be found here: Level 1 - 01:07 Simple addition and subtraction - positive integers Level 2 - 04:00 Addition, subtraction and multiplication - positive integers Level 3 - 07:01 Indices - positive integers Level 4 - 10:01 Brackets - positive integers Level 5 - 13:27 Mixed expressions - positive integers Level 6 - 16:37 Mixed expressions - negative integers Level 7 - 22:44 Mixed expressions - positive and negative decimals There are many more online exercises, activities and resources on Transum.org which you can find at the following web addresses: