Bar Model Math
  • GamesGames
  • Games
  • Grade 3: Addition And Subtraction
Grade 3
  • Grade K
  • Grade 1
  • Grade 2
  • Grade 3
  • Grade 4
  • Grade 5
  • Grade 6
  • G3.1 - Addition And Subtraction
  • G3.2 - Multiplication And Division
  • G3.3 - Multiplication Tables Of 2, 5, And 10
  • G3.4 - Multiplication Tables Of 3 And 4
  • G3.5 - Multiplication Tables Of 6, 7, 8, And 9
  • G3.6 - Solving Problems Involving Multiplication And Division
  • G3.7 - Mental Computation And Estimation
  • G3.8 - Understanding Fractions
  • G3.9 - Time
  • G3.10 - Volume
  • G3.11 - Mass
  • G3.12 - Representing And Interpreting Data
  • G3.13 - Area And Perimeter
  • G3.14 - Attributes Of Two-Dimensional Shapes

Grade 3 - Addition And Subtraction

total lessons: 16
NºActivity titletype

Addition

G3.1.1
Adding 2-Digit Numbers Mentally by Adding Tens Then Adding Ones
  • Mentamatics
  • Barmotive
G3.1.2
Adding 2-Digit Numbers Mentally by First Adding Ones to Make Tens
  • Mentamatics
  • Barmotive
G3.1.3
Adding 2-Digit Numbers Mentally by Adding Tens and Subtracting Ones
  • Mentamatics
G3.1.4
Mentally Adding Hundreds to 3-Digit Numbers Without Regrouping
  • Mentamatics
  • Barmotive
G3.1.5
Mentally Adding Tens to 3-Digit Numbers by Adding 100 and Subtracting Tens
  • Mentamatics
G3.1.6
Making Number Bonds of 100: Games
  • Buildabot
  • Barjiggler
G3.1.7
Making Number Bonds To 1000 (Tens Practice): Games
  • Buildabot
  • Barjiggler
G3.1.8
Making Number Bonds To 1000 (Ones Practice): Games
  • Buildabot
  • Barjiggler
G3.1.9
Making Number Bonds To 1000 (Hundreds Practice): Games
  • Buildabot
  • Barjiggler
G3.1.10
Adding 3-Digit Numbers Without Regrouping
  • Placematics
  • Mentamatics
  • Barmotive
G3.1.11
Adding up to 3-Digit Numbers with Regrouping in Tens and Ones
  • Placematics
  • Mentamatics

Subtraction

G3.1.12
Subtracting 2-Digit Numbers Mentally by Subtracting Tens and Subtracting Ones
  • Barjiggler
  • Mentamatics
  • Barmotive
G3.1.13
Subtracting 2-Digit Numbers Mentally by Subtracting Tens and Adding Ones
  • Mentamatics
  • Barmotive
G3.1.14
Subtracting 2-Digit Numbers Mentally by Subtracting From the Nearest Ten and Adding
  • Mentamatics
  • Barmotive
G3.1.15
Subtracting 3-Digit Numbers Without Regrouping
  • Barjiggler
  • Mentamatics
  • Barmotive
G3.1.16
Subtracting 3-Digit Numbers with Regrouping in Hundreds, Tens, and Ones
  • Mentamatics
© 2026 iSingapore Math LLC. All rights reserved.
Privacy PolicyTerms of ServiceContact