Solve one- and two-step problems using addition and subtraction (strategies include place value, properties of operations, and the relationship between addition and subtraction)
Add Using an Open Number Line
Using an open number line is an excellent way to visualize what is happening when numbers are added together
Using an open number line is an excellent way to visualize what is happening when numbers are added together
Add 3 Digit Numbers Using Expanded Form
Break a number up by place value to add
Break a number up by place value to add
Add 3 Digit Numbers by Composing
When you are adding and you have too many ones, what should you do next?
When you are adding and you have too many ones, what should you do next?
Subtract 3 Digit Numbers by Decomposing
Taking apart numbers in order to subtract them
Taking apart numbers in order to subtract them
Subtract 3 Digit Numbers with a Number Line
Getting to "easy numbers" on the number line to help subtract
Getting to "easy numbers" on the number line to help subtract
Round to the nearest 10 or 100 or use compatible numbers to estimate solutions
Round to the Nearest 10 Using a Number Line
Knowing when to round up or down using a number line
Knowing when to round up or down using a number line
Round to the Nearest Ten Using Base Ten Blocks
Another way to visualize the rounding process
Another way to visualize the rounding process
Round to the Nearest 10 or 100 in Real World Situations
Use your rounding skills in real-life situations
Use your rounding skills in real-life situations
Using Compatible Numbers, Front-End Estimation and Round to Estimate Sums and Differences
Several good strategies to estimate when adding or subtracting
Several good strategies to estimate when adding or subtracting
Boycott Subtraction! Use Compatible Numbers!
A different way to think about subtraction by using compatible numbers
A different way to think about subtraction by using compatible numbers
Represent one- and two-step problems using addition and subtraction using pictures, number lines and equations
Determine the total number of objects in arrays up to 10 by 10
Represent Equal Groups Using Arrays
An introduction to arrays and how they work
An introduction to arrays and how they work
Interpret Products Using Arrays
Using arrays to solve multiplication word problems
Using arrays to solve multiplication word problems
Represent multiplication facts using repeated addition, equal-sized groups, arrays, area models, number lines and skip counting
Solve Multiplication Problems Using Repeated Addition
How 3 x 4 is just 3+3+3+3
How 3 x 4 is just 3+3+3+3
Solve Multiplication Problems Using Skip Counting
How 2 x 6 is the final number in the sequence 2, 4, 6, 8, 10, 12
How 2 x 6 is the final number in the sequence 2, 4, 6, 8, 10, 12
Multiplication as Equal Groups & Repeated Addition
Think about multiplication as cookies and chocolate chips
Think about multiplication as cookies and chocolate chips
Multiplication Using an Area Model
How finding the area of a rectangle is related to multiplication
How finding the area of a rectangle is related to multiplication
Solve 1 Digit by 1 Digit Multiplication Using Area Models
Using arrays to solve multiplication word problems
Using arrays to solve multiplication word problems
Recall multiplication facts up to 10 by 10 and recall the corresponding division facts
Structured Drill of the Multiplication Table
Strategies for practicing multiplication facts
Strategies for practicing multiplication facts
Number Fact Strategies Multiplication
An excellent explanation of an order in which to learn multiplication facts
An excellent explanation of an order in which to learn multiplication facts
Understand Multiplication and Division Relationships
Using what you know about multiplication to understand and solve division
Using what you know about multiplication to understand and solve division
Use a variety of strategies to multiply a one digit number by a two digit number
2 Digit by 1 Digit Multiplication Strategies
Includes partial products and using the distributive property
Includes partial products and using the distributive property
Solve Multiplication Problems Using the Commutative Property
Use the fact that "order doesn't matter" in multiplication to help you solve
Use the fact that "order doesn't matter" in multiplication to help you solve
Determine the number of objects in each group when a set of objects are shared equally
Determine the answer to a division problem (quotient) using the relationship between multiplication and division & find the missing number in a multiplication or division equation
Understanding Multiplication and Division Fact Families Using Arrays
Fact families will help you find the missing number in an equation
Fact families will help you find the missing number in an equation
Solve one- and two-step multiplication and division problems within 100 using strategies based on objects: pictures, arrays, area models, equal groups; properties of operations; or recall of facts
Represent real-world relationships using number pairs in a table and verbal descriptions