# Lesson Guide in Elementary Mathematics 4 - Whole Number - Comprehension of Subtraction

Teacher's Guide, Lesson Plan, Lesson Exemplar  |  Worksheet  |  PDF

Published on 2011 September 28th

Description
This material serves as a guide in dealing with subtraction.
Objective
To develop in the students the ability to:
1. Subtract 5- or more digit numbers fro 6- or more digit numbers without regrouping, having zeros in the minuend or subtrahend.
2. Estimate the difference of two numbers with four to six digits.
3. Analyze and solve word problem involving subtraction of numbers including money, with and without regrouping.
4. Analyze and solve 2-step word problems involving addition and subtraction including money.

#### Curriculum Information

 Education Type K to 12 Grade Level Grade 3 Learning Area Mathematics Content/Topic Numbers and Number Sense Intended Users Educators Competencies Subtracts 3-to 4-digit numbers from 3- to 4-digit numbers without and with regrouping. Subtracts 3-to 4-digit numbers from 3- to 4-digit numbers without and with regrouping. Estimates the difference of two numbers with three to four digits with reasonable results. Ubtracts mentally 1- to 2 – digits numbers without and with regrouping using appropriate strategies. Subtracts mentally 2- to 3 – digits numbers with multiples of hundreds without and with regrouping using appropriate strategies. Solves routine and nonroutine problems involving subtraction without or with addition of whole numbers including money using appropriate problem solving strategies and tools. Creates problems involving addition and/or subtraction of whole numbers including money.