5. Use your calculator to work these out. a) 2482 + 7985 – 6319 d) 2544 ÷ 16 + 2846
Puzzler
Put 4 coins in a row on a table, all tails up. Turn any 3 coins over – this counts as 1 move. You must turn 3 different coins to complete 1 move! How many moves will it take to get all the coins on heads?
1. Study this simple pattern. How would you describe the pattern to someone who could not see it? Try it with the people near you. What are the different elements? (Hint: colour / shape / size.)