# Resource Title search

### 1 Step 2 Step

##### Age 11 to 14 Challenge Level:

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?

### 1 Step, 2 Step Poster

##### Age 11 to 14 Challenge Level:

1 Step, 2 Step - September 2010

### 1 to 8

##### Age 7 to 11 Challenge Level:

Place the numbers 1 to 8 in the circles so that no consecutive numbers are joined by a line.

### 1, 2, 3 Magic Square

##### Age 7 to 11 Challenge Level:

Arrange three 1s, three 2s and three 3s in this square so that every row, column and diagonal adds to the same total.

### 1, 2, 3, 4, 5

##### Age 7 to 11 Challenge Level:

Using the numbers 1, 2, 3, 4 and 5 once and only once, and the operations x and ÷ once and only once, what is the smallest whole number you can make?

### 10 Olympic Starters

##### Age 16 to 18 Challenge Level:

10 intriguing starters related to the mechanics of sport.

### 100 Percent

##### Age 7 to 11 Challenge Level:

An interactive game for 1 person. You are given a rectangle with 50 squares on it. Roll the dice to get a percentage between 2 and 100. How many squares is this? Keep going until you get 100. . . .

### 100 Square Jigsaw

##### Age 5 to 7 Challenge Level:

Can you complete this jigsaw of the 100 square?

### 100m Sprint

##### Age 14 to 16 Short Challenge Level:

Anna, Bridget and Carol run a race. Can you work out where Carol was when Anna finished?

### 11x11 Square

##### Age 11 to 16 Challenge Level:

Here's a neat trick you can do with an 11 by 11 square...

### 12345

##### Age 14 to 16 Short Challenge Level:

Repeat a pattern of numbers to form a larger number. Can you find the sum of all the digits?

### 17s and 23s

##### Age 11 to 14 Short Challenge Level:

Weekly Problem 22 - 2010
Can you form this 2010-digit number...

### 18 Hole Light Golf

##### Age 5 to 16 Challenge Level:

The computer starts with all the lights off, but then clicks 3, 4 or 5 times at random, leaving some lights on. Can you switch them off again?

### 1st Stemnrich T I Day 7 December 2012

##### Age 11 to 18

A holding page for the resources and links from the first stemNRICH TI day for 2012-13.