Addition and Subtraction
Focus: Using the inverse.
Inverse means ‘the opposite’. We can use inverse operations to help us check to see if we calculated our sums correctly.
Go through the PowerPoint below to learn how you can use subtraction to check your answers when you have added, and addition to check your answers when you have subtracted.
Worksheet: Now complete the addition sums and then use subtraction to check them.
Focus: Word Problems involving Time
For this you are going to be looking at word problems using addition and subtraction.
Have a go at the word problems on the PowerPoint. Remember to use RUCSAC to help you!