Adding whole numbers means that we are combining numbers to form a total.
To identify the missing number on the card the given number is subtracted from the total number.
Example
Write the missing numbers on the card.
Method:
4 - 1 = 3
Answer:
Missing number = 3
Shall we have a go at some questions on this?
View the activity introduction for more information on the topic
Read the question aloud
Open the accessibility toolbar to change fonts and contrast, choose a different language, use a ruler and more
Question
Do you want to skip questions and finish?
Hold up, it looks like there may be an issue with your spelling. Why not try it again?
You need to check your answer before you proceed. Are you sure you want to skip?
Teacher explanation