Today we will be learning: how to use a known fact to work out an unknown fact how to use doubling and halving.
Mental Activity We are going to play Multiplication Bingo.
Work with a partner. Draw a grid on paper. Write down six even numbers from 2 to 30. Multiply each of the next card numbers that appear by 2. If you have the answer on your grid, cross it out. The first pair to cross off all six numbers wins.
Main Activity Today we are going to be working with multiplication.
What are the first ten multiples of 2?
What are the next ten multiples of 2?
What type of numbers are the multiples of 2? Even numbers
Let’s look at the multiples of 2 again. When each number appears, we will say the units digit aloud. Join in when you can hear the pattern.
What would the next ten units digits be? 2, 4, 6, 8, 0, 2, 4, 6, 8, 0
Where will the multiples of 2 be on the hundred square?
What will the pattern look like?
How do you think the pattern will continue?
How could you use this information to work out the multiples of 4?
Let’s count on in fours. What do you notice?
The multiples of 4 are all even numbers.
Top Tip The multiples of 4 are alternate even numbers. We can practise saying them. Say the blue numbers loudly and whisper the orange numbers
Group Work Work with a partner to find out which numbers are multiples of 4. Practise doubling numbers. Double numbers from 0 to 30, then double them again. Record each operation as a number sentence.