How many ways can you find to put in operation signs (+, −, ×, ÷) to make 100?
Can you find six numbers to go in the daisy from which you can make all the numbers from 1 to a number bigger than 25?
By selecting digits for an addition grid, what targets can you make?
What happens when you add a three digit number to its reverse?
Can you find sets of numbers which satisfy each of our mean, median, mode and range conditions?
Take any four digit number. Move the first digit to the end and move the rest along. Now add your two numbers. Did you get a multiple of 11?
Charlie and Abi put a counter on 42. They wondered if they could visit all the other numbers on their 1-100 board, moving the counter using just these two operations: x2 and -5. What do you think?
Liam's house has a staircase with 12 steps. He can go down the steps one at a time or two at time. In how many different ways can Liam go down the 12 steps?
Charlie and Alison have been drawing patterns on coordinate grids. Can you picture where the patterns lead?
A 2 by 3 rectangle contains 8 squares and a 3 by 4 rectangle contains 20 squares. What sizes of rectangle contain exactly 100 squares? Can you find them all?
