MyMath Chapter 7

Subtract Three-digit Numbers

Lesson 1

Objective-Make a hundred to subtract a three-digit number

CCSS-2.NBT.7 Add and subtract within 1000, using concrete models or drawings and strategies based on place value; relate the strategy to a written method. Understand that in adding or subtracting three-digit numbers, one add or subtracts hundreds and hundred, tens and tens, ones and ones

Subtracting 100's (AAA Math)

Lesson 2

Objective-Subtract numbers in the hundreds

CCSS-2.NBT.7 Add and subtract within 1000, using concrete models or drawings and strategies based on place value; relate the strategy to a written method. Understand that in adding or subtracting three-digit numbers, one add or subtracts hundreds and hundred, tens and tens, ones and ones

Subtracting 100's (AAA Math)

Fact Monster Subtracting Three-Digit Numbers

Lesson 3

Objective-Mentally subtract numbers by 10 or 100

CCSS-2.NBT.8 Mentally add 10 or 100 to a given number 100-900, and mentally subtract 10 or 100 from a given number 100-900

Subtracting 10's (AAA Math)

Lesson 4

Objective-Regroup tens to subtract three-digit numbers

CCSS-2.NBT.7 Add and subtract within 1000, using concrete models or drawings and strategies based on place value; relate the strategy to a written method. Understand that in adding or subtracting three-digit numbers, one add or subtracts hundreds and hundred, tens and tens, ones and ones

Kahn Academy Video Regrouping Tens to Subtract Using Expanded Notation

Pencil and Paper Subtraction (Click on the Subtraction Tab First)

SoftSchools Regroup Tens to Subtract Three-Digit Numbers

Lesson 5

Objective-Regroup hundreds to subtract three-digit numbers

CCSS-2.NBT.7 Add and subtract within 1000, using concrete models or drawings and strategies based on place value; relate the strategy to a written method. Understand that in adding or subtracting three-digit numbers, one add or subtracts hundreds and hundred, tens and tens, ones and ones

Kahn Academy Video Regrouping Hundreds Using Expanded Notation

Rags to Riches Subtraction Game

Lesson 6

Objective-Subtract three-digit numbers

CCSS-2.NBT.7 Add and subtract within 1000, using concrete models or drawings and strategies based on place value; relate the strategy to a written method. Understand that in adding or subtracting three-digit numbers, one add or subtracts hundreds and hundred, tens and tens, ones and ones

Three Digit Subtraction

Lesson 7

Objective-Rewrite horizontal three-digit subtraction as vertical three-digit subtraction then solve

CCSS-2.NBT.7 Add and subtract within 1000, using concrete models or drawings and strategies based on place value; relate the strategy to a written method. Understand that in adding or subtracting three-digit numbers, one add or subtracts hundreds and hundred, tens and tens, ones and ones

Three-Digit Subtraction Soft Schools

Lesson 8

Objective-Use the write a number sentence strategy to solve problems

CCSS-2.NBT.7 Add and subtract within 1000, using concrete models or drawings and strategies based on place value; relate the strategy to a written method. Understand that in adding or subtracting three-digit numbers, one add or subtracts hundreds and hundred, tens and tens, ones and ones

Subtract Two Digit Numbers from Three-Digit Numbers (Collect Stars)

Drag and Drop Math (Click on "Click Here To Try This," then "Play," then "Subtraction," then Click on the Bottom "3," then the Top "3," and Solve by Dragging the Numbers on the Left to the Stacked Three-Digit Subtraction Problem)

Three-Digit Subtraction Bowling

Lesson 9

Objective-Subtract from numbers ending in zero

CCSS-2.NBT.7 Add and subtract within 1000, using concrete models or drawings and strategies based on place value; relate the strategy to a written method. Understand that in adding or subtracting three-digit numbers, one add or subtracts hundreds and hundred, tens and tens, ones and ones

Subtracting Two-Digit Numbers Across Zeroes