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Basic Math Fact Fluency with Mixed Combinations – Level Two with Four Operations

Every math teacher knows that basic math fact fluency is critical to student success in any math procedure involving computation. The goal I have for my students is that they know the basic math facts as well as they know the letters of the alphabet.

To keep my students sharp, we regularly solve oral mixed combinations mentally. A mixed combination involves performing the basic operations on a set of given numbers. Unlike written problems which are solved using the order of operations, oral mixed combinations are solved performing each operation in the sequence it is given.

Here’s an example of a Level Two with Four Operations combination:

74 - 2 ÷ 12 + 5 x 8 = ?

The solution goes like this: 74 – 2 = 72; 72 ÷ 12 = 6; 6 + 5 = 11; 11 x 8 = 88

As the problem is given, the students keep a running answer in their head and perform the next operation on that current answer. As soon as the students hear the word “equals”, they present their final answer. Their answer can be stated orally or written on paper or on a personal white board.

Again, the purpose of this activity is to promote fact fluency. Unlike using the order of operations when evaluating written expressions, students have to solve mixed combinations by performing each operation as it comes because they have no idea what operation might be coming down the line.

This resource includes 10 slide shows. Each slide show is in two formats: Microsoft PowerPoint 2010 and Adobe Acrobat PDF. Ten combinations are included in each slide show, and each part of each combination is presented one component at a time on successive slides. MULTIPLICATION FACTS AT LEVEL TWO GO UP TO THE TWELVE'S TABLE.

These slide shows can be used in the following ways:

- As an introduction to teach students how mixed combinations are solved

- As a warm-up at the beginning of math class

- As a computer activity at a math center for individuals or small groups

- As a way of differentiating instruction as students work on combinations at their own level

Also included are four sheets with a total of 400 mixed combinations that can be used in the following ways:

- As an oral warm-up at the beginning of math class

- As a small-group activity when differentiating instruction

- As problems in a competition between students in your class

- As problems in a competition between your students and students in another class

A number of years ago my 6th grade math class was challenged by a team of 7th grade math classes to a mental math competition involving mixed combinations.

Copy and paste this link in your browser and enjoy the highlights of that competition:

http://safeshare.tv/w/URRTWtqxSd

The following Mental Math with Mixed Combinations resources are available at my store:

Link-Basic Math Fact Fluency with Mixed Combinations – Level One with Two Operations – FREE DOWNLOAD

Link-Basic Math Fact Fluency with Mixed Combinations – Level One with Three Operations

Link-Basic Math Fact Fluency with Mixed Combinations – Level One with Four Operations

Link-Basic Math Fact Fluency with Mixed Combinations – Level One with Five Operations

Link-Basic Math Fact Fluency with Mixed Combinations – Level Two with Two Operations

Link-Basic Math Fact Fluency with Mixed Combinations – Level Two with Three Operations

Link- Basic Math Fact Fluency with Mixed Combinations – Level Two with Five Operations

Every math teacher knows that basic math fact fluency is critical to student success in any math procedure involving computation. The goal I have for my students is that they know the basic math facts as well as they know the letters of the alphabet.

To keep my students sharp, we regularly solve oral mixed combinations mentally. A mixed combination involves performing the basic operations on a set of given numbers. Unlike written problems which are solved using the order of operations, oral mixed combinations are solved performing each operation in the sequence it is given.

Here’s an example of a Level Two with Four Operations combination:

74 - 2 ÷ 12 + 5 x 8 = ?

The solution goes like this: 74 – 2 = 72; 72 ÷ 12 = 6; 6 + 5 = 11; 11 x 8 = 88

As the problem is given, the students keep a running answer in their head and perform the next operation on that current answer. As soon as the students hear the word “equals”, they present their final answer. Their answer can be stated orally or written on paper or on a personal white board.

Again, the purpose of this activity is to promote fact fluency. Unlike using the order of operations when evaluating written expressions, students have to solve mixed combinations by performing each operation as it comes because they have no idea what operation might be coming down the line.

This resource includes 10 slide shows. Each slide show is in two formats: Microsoft PowerPoint 2010 and Adobe Acrobat PDF. Ten combinations are included in each slide show, and each part of each combination is presented one component at a time on successive slides. MULTIPLICATION FACTS AT LEVEL TWO GO UP TO THE TWELVE'S TABLE.

These slide shows can be used in the following ways:

- As an introduction to teach students how mixed combinations are solved

- As a warm-up at the beginning of math class

- As a computer activity at a math center for individuals or small groups

- As a way of differentiating instruction as students work on combinations at their own level

Also included are four sheets with a total of 400 mixed combinations that can be used in the following ways:

- As an oral warm-up at the beginning of math class

- As a small-group activity when differentiating instruction

- As problems in a competition between students in your class

- As problems in a competition between your students and students in another class

A number of years ago my 6th grade math class was challenged by a team of 7th grade math classes to a mental math competition involving mixed combinations.

Copy and paste this link in your browser and enjoy the highlights of that competition:

http://safeshare.tv/w/URRTWtqxSd

The following Mental Math with Mixed Combinations resources are available at my store:

Link-Basic Math Fact Fluency with Mixed Combinations – Level One with Two Operations – FREE DOWNLOAD

Link-Basic Math Fact Fluency with Mixed Combinations – Level One with Three Operations

Link-Basic Math Fact Fluency with Mixed Combinations – Level One with Four Operations

Link-Basic Math Fact Fluency with Mixed Combinations – Level One with Five Operations

Link-Basic Math Fact Fluency with Mixed Combinations – Level Two with Two Operations

Link-Basic Math Fact Fluency with Mixed Combinations – Level Two with Three Operations

Link- Basic Math Fact Fluency with Mixed Combinations – Level Two with Five Operations

Total Pages

106 pages

Answer Key

N/A

Teaching Duration

N/A