Online College Courses for Credit

Subtracting Multi-Digit Numbers

Subtracting Multi-Digit Numbers

Author: Rachel Casto

I can subtract whole numbers less than or equal to 1,000,000 using the standard algorithm.

See More

Try Our College Algebra Course. For FREE.

Sophia’s self-paced online courses are a great way to save time and money as you earn credits eligible for transfer to many different colleges and universities.*

Begin Free Trial
No credit card required

28 Sophia partners guarantee credit transfer.

286 Institutions have accepted or given pre-approval for credit transfer.

* The American Council on Education's College Credit Recommendation Service (ACE Credit®) has evaluated and recommended college credit for 26 of Sophia’s online courses. Many different colleges and universities consider ACE CREDIT recommendations in determining the applicability to their course and degree programs.


Key Vocabulary

place value-the value of where a digit is in a number
     **4th grade expectation-->ones, tens, hundreds, thousands, ten thousands, hundred thousands, millions

difference-the result or answer to a subtraction problem

regrouping-reorganizing the formation of a group; used in addition when "carrying" over to the next column; used in subtraction when "borrowing" from the next column

Below you will find resources to help students subtract multi-digit numbers, with and without regrouping ("borrowing").


Estimate Sums and Differences 
(Source: StudyJams)

Relate Addition and Subtraction 
(Source: StudyJams)

Add and Subtract Without Regrouping 
(Source: StudyJams)

Subtract Using Open Number Line
(Source:  Learn Zillion)


Basic Regrouping 
(Source: Khan Academy)

Subtract Using Standard Algorithm
(Source:  Learn Zillion)

(Source: Khan Academy)

Regrouping Twice 
(Source: Khan Academy)

Across Zeroes 
(Source: Khan Academy)

Subtraction With Regrouping
(Source: StudyJams)

Subtraction With and Without Regrouping


Subtraction With Regrouping (Across Zeroes, too)