Lesson Plan: Subtracting Two-Digit Numbers on Number Lines | Nagwa Lesson Plan: Subtracting Two-Digit Numbers on Number Lines | Nagwa

Lesson Plan: Subtracting Two-Digit Numbers on Number Lines Mathematics • 2nd Grade

This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to count backward on number lines to subtract two-digit numbers.

Objectives

Students will be able to

  • count backward along a number line to subtract a pair of two-digit numbers,
  • use partitioning to help subtract across a 10,
  • apply knowledge of subtracting using a number line when solving word problems.

Prerequisites

Students should already be familiar with

  • subtracting single digits from two-digit numbers by counting backward on number lines,
  • partitioning to help with calculations.

Exclusions

Students will not cover

  • subtracting two-digit numbers without using a number line,
  • subtracting from three-digit numbers.

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