8. Write down the next two terms in each sequence:
15, 24, 33, 42, ———— , ————
23. Here are four cards which you can use to make numbers:
Write down all the possible 4-digit even numbers you can make which are greater than 3000. Write your answers from smallest to biggest.
38. (a) A school gate can be opened using the correct combination of digits in the correct order.
When 418 is tried, one digit is wrong.
When 238 is tried, one digit is wrong.
When 437 is tried, one digit is still wrong.
What is the correct combination?
(c) What are the weights of the shapes?