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Friday Challenge: 26th June

Play a Maths Game!

Make a pile of digit cards numbered 1 to 9.
 
Player A takes one of the cards. e.g 3.
 
Ask the question, ‘Which card would you choose to go with the 3 so you could make the largest possible two-digit even number with the two cards?
 
Put the card back in the pile. 

 

Player B takes a card. e.g. 6.

Ask the question, ‘Which card would you choose to go with the 6 so you could make the largest possible two-digit even number with the two cards?

Have a go at this with a partner. Take it in turns.

 
Try it several times so you are sure you have a good method. Talk about your ideas with your partner so you agree together on a 'best' method.
 
How would your strategy change if you had to make the largest two-digit odd number?

Once you have worked out the ‘best’ strategy for both even and odd, let us know on dailychallenge@st-barnabs.kent.sch.uk
 
If you don't have a partner to work with, you could follow this link to an interactive activity.  The computer selects one digit at random. You must then choose a digit to make the largest possible two-digit even number or largest possible two-digit odd number.