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Subtracting Two-Digit Numbers: Regrouping Tens and Ones

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

Intro: Subtracting With Digits Up To 100

Subtracting two-digit numbers with and without regrouping

Subtracting 57 − 23 Using Place Value

Subtracting two-digit numbers using place value

Subtracting 73 − 28 with Regrouping

Subtracting 73 minus 28 using regrouping

Subtracting 73 − 48 With Regrouping

Subtracting 73 minus 48 with regrouping

This lesson covers subtracting two-digit numbers up to 100 using place value columns and regrouping. Students learn to line up tens and ones, subtract each place correctly, borrow from the tens column when the ones digit is too small, and verify answers, building the foundation for larger subtraction problems.

Subtracting with Digits up to 100 | StudyPug

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Overview

Two-Digit Subtraction up to 100

What You'll Learn

Line up two-digit numbers by place value, matching ones under ones and tens under tens.

Subtract the ones digits first, then the tens digits, working from right to left.

Regroup a ten into ten ones when the top ones digit is smaller than the bottom ones digit.

Check a subtraction like \( 52 - 27 = 25 \) by adding the answer back to the number you subtracted.

Use place value blocks or a number line to picture why borrowing works before relying on the written steps.

Watch for the common mistake of subtracting the smaller digit from the larger one in the wrong order.

What You'll Practice

Subtracting two-digit numbers without regrouping

Subtracting two-digit numbers with regrouping

Solving vertical subtraction problems up to 100

Why This Matters

This Unit Includes

4 Video lessons

Practice exercises

Learning resources

Skills

Subtraction

Two-Digit Numbers

Place Value

Regrouping

Mental Math