Review Addition
If you get stuck, click here and find the highlighted lesson.
 Add Objects I
 Add Objects II
 Adding Numbers I
 Adding Numbers II
 Adding Using Words
 Addition Facts for 0, 1, and 2
 Addition Facts for 3 and 4
 Addition Facts for 5 and 6
 Addition Facts for 7, 8, and 9
 All Addition Facts to 9 + 9
 addUpTo10
 Sum of 10 + (19)
 What number needed to total twenty
 Adding Tens
 Add 2Digit Numbers Without Regrouping
 Addition Three 1Digit Numbers
 Adding Hundreds
 Add With Mental Math
 Add With Pencil and Paper
 Add With a Calculator
 Addition Using Estimation
 FrontEnd Estimation of Sums
 Adding Three 2Digit Numbers
 Adding 3Digit Numbers
 Adding 4Digit Numbers
 Adding 5Digit Numbers
 Adding 6Digit Numbers
 Adding 7Digit Numbers
 Inverse Relationship of Add and Subtract
 Properties of Addition
 Place Value Expanded Form
 Relationship of Addition to Multiplication
 Addition Terms
 Add Vertically
 Add Decimal Tenths
 Adding Nickels and Pennies
 Adding Dimes and Pennies
 Adding Dimes, Nickels and Pennies
 Adding Dollars, Dimes and Pennies
 Addition of Money
 Adding 2 Decimals
 Adding 3 Decimals
 Adding Feet and Inches
 Adding Pounds and Ounces
 Add Weeks and Days
 Add Days and Hours
 Adding Minutes and Hours
 Add Minutes and Seconds
 Add Hours to a Time
 Add HalfHours to a Time
 Addition Using Estimation
 FrontEnd Estimation of Sums
 Estimate Sum of Decimals
 Place Value Expanded Form
 The Four Basic Operations
 Adding Roman Numerals
 1Digit Addition Equations
 2Digit Addition Equations
 3Digit Addition Equations
 4Digit Addition Equations
 5Digit Addition Equations
 6Digit Addition Equations
 Adding OneDigit Integers
 OneDigit Integer Addition Equations
 Adding TwoDigit Integers
 TwoDigit Integer Addition Equations
 Adding Three Integers
 ThreeDigit Integer Addition Equations
 FourDigit Integer Addition Equations
 Add Like Fractions
 Least Common Denominator
 Adding Fractions
 Add Mixed Numbers
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(There are 73 lessons in this review.)
Add Objects I: Practice
How Many Boxes?
00:00

+ 

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Add Objects II: Practice
How Many Boxes?
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+ 

= 
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Add Numbers I: Practice
What is the Sum of the two Numbers?
00:00
+ 
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Add Numbers II: Practice
What is the Sum of the two Numbers?
00:00
+  = 
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Add Using Words: Practice
What is the sum of the two numbers?
00:00
plus  is 
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Addition with 0, 1, 2: Practice
What is the Sum of the two Numbers?
00:00
+ 
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Addition with 3 and 4: Practice
What is the Sum of the two Numbers?
00:00
+ 
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Addition with 5 and 6: Practice
What is the Sum of the two Numbers?
00:00
+ 
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Addition with 7, 8, 9: Practice
What is the Sum of the two Numbers?
00:00
+ 
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Addition Facts Up To 9: Practice
What is the Sum of the two Numbers?
00:00
+ 
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Add to Ten: Practice
What number needs to be added to make ten?
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Add to Ten: Practice
What is the Sum of the two Numbers?
00:00
+ 
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Add to Twenty: Practice
What number needs to be added to total twenty?
00:00
+ 
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Adding Tens: Practice
What is the Sum of the two Numbers?
00:00
+  = 
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Adding TwoDigit Numbers: Practice
What is the Sum of the two Numbers?
00:00
+  = 
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Adding Three 1Digit Numbers: Practice
What is the Sum of the three Numbers?
00:00
+  +  = 
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Adding Hundreds: Practice
What is the Sum of the two Numbers?
00:00
+  = 
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Add with Mental Math: Practice
What is the Sum of the two Numbers?
00:00
+  = 
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Add with Mental Math: Practice
What is the Sum of the two Numbers?
00:00
+  = 
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Add with a Calculator: Practice
What is the Sum of the two Numbers?
00:00
+  =  
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Estimating with Rounding: Practice
Estimate the sum by rounding the two numbers.
00:00
+  = 
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Add with FrontEnd Estimation: Practice
Estimate the sum using FrontEnd Estimation
00:00
+ is about
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Adding TwoDigit Numbers: Practice
What is the Sum of the three Numbers?
00:00

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Adding ThreeDigit Numbers: Practice
What is the Sum of the two Numbers?
00:00

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Adding FourDigit Numbers: Practice
What is the Sum of the two Numbers?
00:00

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Adding FiveDigit Numbers: Practice
What is the Sum of the two Numbers?
00:00

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Adding SixDigit Numbers: Practice
What is the Sum of the two Numbers?
00:00

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Adding SevenDigit Numbers: Practice
What is the Sum of the two Numbers?
00:00

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Relationship Between Add and Subtract: Practice
What number should replace X?
00:00
If X + X = X,
then X  X = X
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Properties of Addition: Practice
What property is illustrated?
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Expanded Form: Practice
What is the number?
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= 
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Multiplying by Repeated Addition: Practice
Write the corresponding multiplication expression
00:00
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Addition Terms: Practice
Choose the correct term.
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In the equation , the "" is called
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Adding TwoDigit Numbers: Practice
What is the Sum of the two Numbers?
00:00

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Adding Tenths: Practice
What is the sum?
00:00
+ =
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Adding Coins: Practice
Find the sum of the coins.
00:00
nickels and pennies
cents
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Adding Coins: Practice
Find the sum of the coins.
00:00
dimes and pennies
cents
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Adding Coins: Practice
Find the sum of the coins.
00:00
dimes, nickels, and pennies
cents
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Adding Coins: Practice
Find the sum of the coins.
00:00
dollars, dimes, and pennies
cents
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Add Money: Practice
What is the sum of the two amounts?
00:00
$  +  $  = 
$ 
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Add Decimals: Practice
What is the sum?
00:00
+  = 
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Add Decimals: Practice
What is the sum?
00:00
+  +  = 
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Add Feet and Inches: Practice
00:00
feet and
inches
plus
feet and
inches
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Add Pounds and Ounces: Practice
00:00
pounds and
ounces
plus
pounds and
ounces
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Add Weeks and Days: Practice
00:00
weeks and
days
plus
weeks and
days
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Add Days and Hours: Practice
00:00
days and
hours
plus
days and
hours
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Add Hours and Minutes: Practice
00:00
hours and
minutes
plus
hours and
minutes
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Add Minutes and Seconds: Practice
00:00
minutes and
seconds
plus
minutes and
seconds
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Add Hours: Practice
What is the sum of the times?
00:00
hours past :00
0:00 AMPM
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Add Half Hours: Practice
What is the sum of the timse?
00:00
hours minutes past
0:00 AMPM
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Estimating with Rounding: Practice
Estimate the sum by rounding the two numbers.
00:00
+  = 
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Add with FrontEnd Estimation: Practice
Estimate the sum using FrontEnd Estimation
00:00
+ is about
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Estimating with Rounding: Practice
Estimate the sum by rounding the two numbers.
00:00
+  = 
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Expanded Form: Practice
What is the number?
00:00
= 
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Four Basic Operations: Practice
What is the answer?
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Roman Numerals: Practice
What is the sum of the Roman Numerals?
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Adding Sentences: Practice
What number would complete the equation?
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+  = 
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Adding Sentences: Practice
What number would complete the equation?
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Adding Sentences: Practice
What number would complete the equation?
00:00
+  = 
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Adding Sentences: Practice
What number would complete the equation?
00:00
+  = 
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Adding Sentences: Practice
What number would complete the equation?
00:00
+  = 
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Adding Sentences: Practice
What number would complete the equation?
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+  = 
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Add Integers: Practice
What is the sum of the two integers?
00:00
+  = 
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Integer Addition Sentences: Practice
What number would complete the equation?
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+  = 
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Add Integers: Practice
What is the sum of the two integers?
00:00
+  = 
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Integer Addition Sentences: Practice
What number would complete the equation?
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+  = 
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Add 3 Integers: Practice
What is the sum of the integers?
00:00
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Integer Addition Sentences: Practice
What number would complete the equation?
00:00
+  = 
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Integer Addition Sentences: Practice
What number would complete the equation?
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+  = 
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Add Like Fractions: Practice
Add. (Do not simplify.)
00:00

+ 

= 

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LCD: Practice
Rename the fractions using their least common denominator
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Add Fractions: Practice
Add the fractions.
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State the answer as a simplified fraction, and not a mixed number.

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Add Mixed Numbers: Practice
Add the mixed numbers.
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Do not simplify your answer.

= 

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Explore
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Math Topics
 Addition
 Algebra
 Comparing
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 Division
 Equations
 Estimation and Mental Math
 Exponents
 Fractions
 Geometry
 Measurement
 Money
 Multiplication
 Naming Numbers
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 Percents and Ratios
 Place Value
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