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Lesson Plan: Subtracting Hundreds from Three-Digit Numbers Mathematics

This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to subtract multiples of one hundred from three-digit numbers and model this using place value equipment, number lines, and part–whole models.

Objectives

Students will be able to

  • represent subtracting a multiple of one hundred from three-digit numbers using place value equipment,
  • use place value language to describe subtracting a multiple of one hundred from a three-digit number,
  • represent subtracting a multiple of one hundred from a three-digit number on a number line,
  • complete part–whole models to find the result of subtracting multiples of one hundred from three-digit numbers,
  • subtract a multiple of hundred from a three-digit number without using a model,
  • determine what multiple of one hundred has been subtracted from a three-digit number.

Prerequisites

Students should already be familiar with

  • subtracting ones from three-digit numbers,
  • subtracting tens from three-digit numbers.

Exclusions

Students will not cover

  • column subtraction,
  • regrouping.

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