# Number (addition and subtraction): Smart Squirrels

## The Problem

A new maze has been created for Duke the grey squirrel. However, this maze is slightly more complicated than the one featured in the main film clip. There are no dead ends in this maze, but there are numbers. (You can see these on the plan of the maze opposite.)

1) Can you help Duke find a route through the maze and its total?

A gate was added to the end of the maze. It only opened when a squirrel ran a route with a total of 40.

2) Which route will Duke need to run for the gate to open?

Did you know?

Squirrel nests are called ‘dreys’. They are usually found in the forks of tall trees and are made out of twigs, leaves, bark and grass. The nests keep the squirrels warm in the winter, when they spend more time sleeping. A squirrel drey also provides a baby squirrel a safe place to grow up for the first months of its life.

## Visualising the Problem and Getting Started

If Duke takes the route shown by the red dotted line, what will the total be?

What strategies do you have for adding together lots of single digit numbers?