Algoritm Poster.jpg - Section 2: Teacher Demonstration

 
  Algoritm Poster.jpg
Loading resource...
 

Rounding to Check Addition

Unit 5: Adding & Subtracting Large Numbers
Lesson 1 of 16

Objective: SWBAT use rounding to check for reasonableness when adding multi-digit numbers.

Big Idea: Students will practice rounding both addends to find the estimated sum and both the subtrahend and the minuend to find the estimated difference.

  Print Lesson
17 teachers like this lesson
rounding to check
 
1
2
3
Similar Lessons
 
Subtracting with Decomposing
4th Grade Math » Place value
Big Idea: In this lesson, students use tape diagrams in order to subtract and make sense of subtraction as the inverse of addition.
  Favorites(22)
  Resources(14)
Helena, MT
Environment: Suburban
Melissa Romano
 
Using Mental Math to Add and Subtract
4th Grade Math » Adding and Subtracting Whole Numbers
Big Idea: Students can use the break apart, compensation, and counting on methods to add and subtract without paper and pencil.
  Favorites(11)
  Resources(17)
Memphis, TN
Environment: Urban
Rose Monroe
 
Real World Word Problems with Multiplication and Division (Day 2)
5th Grade Math » Multi-Digit Multiplication and Division, Powers of 10s
Big Idea: Order of Operations is essential to all math work, leading to understanding of Algebraic expressions. Many Real World Problems take more than one step to solve, sometimes 2 steps and sometimes more steps!
  Favorites(7)
  Resources(18)
Seattle, WA
Environment: Urban
James Ewing
 
 
Something went wrong. See details for more info
Nothing to upload
details
close