Multiplication and division facts
Vocabulary operation: something you do to a number. #'!$ are all mathematical operations.
Let’s investigate
These numbers follow a pattern. 63
4
10 ' 2 # 2 " 10 7!3$3"7
Look at the numbers on each end of a line passing through the circle.
56
9
What number goes in the middle?
!5 is the inverse operations: operations that ‘undo’ each other if applied to a number one after the other. For example,
28
?
inverse: having the opposite effect. # 9 is the inverse of ' 9, inverse of $ 5.
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Knowing your times tables will help you to solve the following questions. 1
Sara is trying to find the code to unlock a treasure chest.
first digit
last digit
She has these clues: The last digit is 28 $ 7. The sum of the middle two digits is 4. The first digit is double the last digit. All the digits are in the 2! table. Two digits are multiples of 4. What is the code number? Turn the page for more questions.
Unit 1A: Core activity 3.1 Multiplication and division facts
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