Thinking Strategically
Treasure Hunt
Can you find a reliable strategy for choosing coordinates that will locate the treasure in the minimum number of guesses?
Factors and Multiples Game
A game in which players take it in turns to choose a number. Can you block your opponent?
Have You Got It?
Can you explain the strategy for winning this game with any target?
Dicey Operations
Who said that adding, subtracting, multiplying and dividing couldn't be fun?
Gabriel's Problem
Gabriel multiplied together some numbers and then erased them. Can you figure out where each number was?
How Much Can We Spend?
A country has decided to have just two different coins, 3z and 5z coins. Which totals can be made? Is there a largest total that cannot be made? How do you know?
Thinking Strategically - Short Problems
A collection of short Stage 3 and 4 problems on Thinking Strategically.
Diamond Collector
Collect as many diamonds as you can by drawing three straight lines.
Square It
Players take it in turns to choose a dot on the grid. The winner is the first to have four dots that can be joined to form a square.
Parallelogram It
Players take it in turns to choose a dot on the grid. The winner is the first to have four dots that can be joined to form a parallelogram.
Rhombus It
Players take it in turns to choose a dot on the grid. The winner is the first to have four dots that can be joined to form a rhombus.
Wipeout
Can you do a little mathematical detective work to figure out which number has been wiped out?
Connect Three
In this game the winner is the first to complete a row of three. Are some squares easier to land on than others?
Product Sudoku
The clues for this Sudoku are the product of the numbers in adjacent squares.
River Crossing
There is nothing half so much worth doing as simply messing about in boats...
Warmsnug Double Glazing
How have "Warmsnug" arrived at the prices shown on their windows? Which window has been given an incorrect price?
Latin Numbers
Can you create a Latin Square from multiples of a six digit number?