On what page of the collections textbook does Macbeth's battle with Macduff and Malcolm begin?

I cannot tell you exactly which page of your particular textbook will contain the passages you need, but I can walk you through the scenes that seem to present the information you're looking for:

We first learn that Malcolm and Macduff have arrived in Scotland and are marching toward Macbeth's castle in Act 5, Scene 2, when several Scots lords discuss the approach of the "English power" led by these two men (5.2.1).

In Act 5, Scene 4, Malcolm gives orders for each soldier to "hew him down a bough / And bear 't before him" (5.4.6-7).  This is the tactic they will use to hide their numbers until they reach the castle.

In Act 5, Scene 5, Macbeth learns that his wife has died.

In Act 5, Scene 6, Malcolm's army throws down their boughs and charges the castle.

In Act 5, Scene 7, Macbeth sword-fights Young Siward and bests him, and Macduff enters the castle.

In Act 5, Scene 8, Macduff finally confronts Macbeth, and Macbeth is slain.