Learn to combine multiplication with addition or subtraction. Learn to use brackets to change the order of operations. Build on knowledge of the distributive law.
- Teaching point 1: Multiplication can be combined with addition and subtraction; when there are no brackets, multiplication is completed before addition or subtraction; when there are brackets, the calculation within the brackets is completed first.
- Teaching point 2: When adding or subtracting multiplication expressions that have a common factor, the distributive law can be applied.