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Subtraction with Regrouping up to 100: Borrowing Method

2.G.A.1

Sort 2D Shapes by attribute

2.G.A.2

Composing and decomposing 2D Shapes

2.G.A.3

Identify 2D shapes in 3D shapes

2.MD.A.1

Measuring lengths

2.MD.A.2

Estimating lengths

2.MD.A.4

Comparing lengths

2.MD.B.5

Adding and subtracting lengths

2.MD.B.6

Mixed patterns

2.MD.C.7

Reading time

2.MD.C.8

Value of a coin

Equivalent money combinations

Making change

2.MD.D.10

Bar graphs

Pictographs

2.MD.D.9

Collecting data

2.NBT.A.1

Matching place value models to numbers

Match the Number to a Model — Up to 999

Numeral expanding up to 999

Numeral Expansion — Up to 999

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Identifying hundred, tens, & ones

Identify the Digit — Up to 999

Place value models up to 999

Identify the Number from the Model — Up to 999

2.NBT.A.2

Counting to 100 with visual aids

Counting to 100 with numbers

Counting to 100 with objects

Skip counting by 2s, 5s, and 10s

2.NBT.A.3

Expanded form up to 999

Expanded Form — Up to 999

Place value tables up to 999

Place Value Tables — Up to 999

2.NBT.A.4

Converting between place values up to 999

Convert Hundreds to Tens (Up to 999)

Place value word problems up to 999

2.NBT.B.5

Adding with doubles up to 100

Adding Doubles — Up to 100

Using counting to add digits up to 100

Adding By Counting — Up to 100

Adding with 3 numbers up to 100

Addition with regrouping up to 100

Add By  Regrouping — Up to 100

Using number lines to subtract up to 100

Counting to subtract up to 100

Subtract By Counting — Up to 100

Subtracting by 10s

Subtract By Tens — Up to 100

Subtracting with place value models up to 100

Subtract Using Place Blocks — Up to 100

Subtraction facts up to 100

Subtraction Properties — Up to 100

Completing subtraction images & statements

Fill in the Blank — Up to 100

Subtracting by jumping up to 100

Using objects to subtract up to 100

Subtract By Objects — Up to 100

2.NBT.B.6

Using number line to add up to 100

2.NBT.B.7

Subtraction with regrouping up to 100

Subtract By Regrouping — Up to 100

Regrouping place values up to 999

Regrouping Place Values — Up to 999

2.NBT.B.8

Addition strategies

Adding By Separation — Up to 100

Adding with patterns up to 100

Subtracting with patterns up to 100

2.NBT.B.9

Using models to add up to 100

Add Using Block Models — Up to 100

Addition tables up to 100

Add By Number Table — Up to 100

Completing addition statements up to 100

Subtraction tables up to 100

2.OA.A.1

Adding digits up to 100

Add By Digits — Up to 100

Addition word problems up to 100

Addition Word Problems — Up to 100

Subtracting with digits up to 100

Subtract By Digits — Up to 100

Subtraction word problems up to 100

Subtraction Word Problems — Up to 100

2.OA.B.2

Addition facts up to 100

Using mental math to add up to 20

Using mental math to subtract up to 20

Mental math word problems

2.OA.C.3

Even and odd numbers

Recognizing Even Numbers

Recognizing Odd Numbers

2.OA.C.4

Repeated addition with arrays

Adding By Arrays — Up to 100

Groups and arrays up to 99

Parent Assignments

Challenge Zone

Foundation Review

2nd Grade Math

sample

math

Subtracting 52 − 37 with Regrouping

Solving 52 minus 37 with regrouping

Subtracting 73 − 28 with Regrouping

Solving 73 minus 28 with regrouping

Find the Missing Digit in 7□ - 48 = 25

Finding a missing digit using regrouping

Intro: Subtraction With Regrouping Up To 100

Introduction to Subtraction with Regrouping

This lesson explains subtraction with regrouping up to 100, showing when and why you borrow a ten and turn it into ten ones. Using place value diagrams and step-by-step worked examples with two-digit numbers, students learn to line up tens and ones, regroup correctly, and subtract accurately.

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Overview

Subtraction with Regrouping up to 100

What You'll Learn

Recognize when the ones digit of the minuend is smaller than the ones digit being subtracted

Regroup by borrowing one ten and rewriting it as ten extra ones, such as turning 5 tens 2 ones into 4 tens 12 ones

Subtract the ones column first, then the tens column, after regrouping

Use place value models to see why \( 52 = 40 + 12 \) is the same amount as \( 52 = 50 + 2 \)

Check answers by adding the difference back to the number being subtracted

Apply the regrouping method to real two-digit subtraction problems up to 100

What You'll Practice

Subtracting two-digit numbers that require regrouping from the tens place

Completing subtraction problems with missing digits or blanks

Working through multi-step regrouping exercises up to 100

Why This Matters

This Unit Includes

4 Video lessons

Practice exercises

Learning resources

Skills

Regrouping

Borrowing

Place Value

Two-Digit Subtraction

Mental Math