puzzles and problems such as:
prices from one currency to another. Answer word questions involving converting
prices in euros and US dollars to £ sterling. The rates of exchange
can be changed. Enter the current rate of exchange.
out calculations involving more than one operation including brackets.
out the missing numbers in a table. In each table the rows and columns
add up to the same total.
the missing numbers in calculations. Involves prime and consecutive
J4: Missing numbers1
the missing numbers in calculations involving multiplication and division
of whole numbers.
J5: Missing numbers 2
the missing digit: multiplication
J6: Missing digits
Difference and Product
A problem-solving activity
small numbers are generated, their sum, difference and product are worked
Hide the two numbers, can you work out what they are from their sum,
product and difference?
Click on 'change' to generate two more numbers.
Hide the product, work out the two numbers from their sum and difference.
odd or even labels: is it possible to say whether a sum, product or
difference will be odd or even?
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