Mathematical Task 4.1A.

Slides:

Advertisements

Similar presentations

Advertisements

What is wrong with saying 372 base 6 ? What is a proper way of writing this number in base 6?

Estimating Quotients. Compatible Numbers Estimate: 5,903 6 = 6,000 6= Estimate: 867 9= Numbers that are easy to compute mentally. 1, =100.

Calcul mental. Calcul n°1 2 x 7 = Calcul n°2 3x 7 =

MENTAL MATH General Review = 60 – 10 = =

Estimating with Fractions and Mixed Numbers

EXAMPLE 3 Using the Associative Property = = Associative property of addition Add fractions. Write as one. 5 5 Add. 4=

Pre-Algebra 8-5 Estimating with Percents Learn to estimate with percents.

Multiply and Divide Decimals

Commutative Property of Addition 2+3 = 3+2 *This property states you can add two numbers in any order!

Chapter 2 Review. Using Mental Math, solve the following: 25,000 x 20 = ?

Basic Laws Of Math x

1 10 pt 15 pt 20 pt 25 pt 5 pt 10 pt 15 pt 20 pt 25 pt 5 pt 10 pt 15 pt 20 pt 25 pt 5 pt 10 pt 15 pt 20 pt 25 pt 5 pt 10 pt 15 pt 20 pt 25 pt 5 pt It’s.

Multiplying and Dividing Decimals

Pre-Algebra 8-5 Estimating with Percents 8-5 Estimating with Percents Pre-Algebra Warm Up Warm Up Problem of the Day Problem of the Day Lesson Presentation.

Simplifying Expressions. The Commutative and Associative Properties of Addition and Multiplication allow you to rearrange an expression to simplify it.

Splash Screen. Lesson Menu Five-Minute Check (over Lesson 3–2) Main Idea Example 1:Real-World Example Example 2:Real-World Example Example 3:Compatible.

6-2 Estimating with Percents NS1.3 Convert fractions to decimals and percents and use these representations in estimations, computations, and applications.

Course Mental Math 1-5 Mental Math Course 1 Warm Up Warm Up Lesson Presentation Lesson Presentation Problem of the Day Problem of the Day.

Multiplication Properties

Properties are special qualities of something. Addition and multiplication have special qualities that help you solve problems mentally = MENTAL MATH!!

1-4 Properties and Mental Math 9/20/11 Warm Up Find each sum or product (24) 4. 7(12) 5. 3(91) 6. 6(15)

Properties of Addition Chapter 2-1. Mental Math Answering math problems without a calculator or pencil and paper.

1-4 6th grade math Addition Properties.

Percent of a Number Lesson 8 – 1. Vocabulary ‘ of ’ means to multiply.

Pre-Algebra 8-5 Estimating with Percents Warm-up.

Multiplication Drill Standards: M3N3 Students will further develop their understanding of multiplication of whole numbers and develop the ability to apply.

Complete and Check Answers Before Doing Other Activities

When estimating, 1.) You should be able to do the computation in your head 2.) Your answer should be close to the exact answer 1-1 Estimating sums, differences.

Lesson th grade math Estimating Products. Objective:  Estimate the solutions to problems involving fractions and mixed numbers by rounding and.

$100 $200 $300 $400 $100 $200 $300 $400 $300 $200 $100 Multiply by 1 digit numbers Multiply & estimate results Multiply by 2 digit numbers Multiply.

Commutative Property of Addition 2+3 = 3+2 *This property states you can add two numbers in any order!

Order of Operations and the Distributive Property COURSE 2 LESSON 1-9 Use the Distributive Property to find 7(52). What you think 52 is Finding.

2.5 Properties of Mental Computation. ASSOCIATIVE OF ADDITION DISTRIBUTION COMMUNATIVE OF ADDITION ASSOCIATIVE OF MULTIPLICATION REFLEXIVE.

MENTAL MATH Rounding Addition and Subtraction Strategy: Estimate the answer by rounding each number to the nearest hundred Examples:

Estimation Whole numbers, Sums, Differences, Products, and Quotients.

By Jennifer Quillen CH. 13 DEVELOPING STRATEGIES FOR MULTIPLICATION AND DIVISION COMPUTATION.

6-2 Estimating with Percents Warm Up Warm Up California Standards California Standards Lesson Presentation Lesson PresentationPreview.

Mental Math: Percent David McKillop Making Math Matter, Inc.

Estimating with Percents

Multiplication Properties

Multiplication Properties

3 Chapter Numeration Systems and Whole Number Operations

Estimating With Decimals

Division Page 87 – 119.

Properties of Numbers Use mental math to simplify –2 • 13 • 5.

Objectives Use the Commutative, Associative, and Distributive Properties to simplify expressions.

Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.

Finding a Percent of a Number

It’s all about the Vocab

Math Properties.

States… Associative Property Examples Non-Examples.

Purpose Students will be able to use the Commutative, Associative, and Distributive Properties to simplify expressions and combine like terms.

Estimate the area from 0 to 5 under the graph of {image} using five approximating rectangles and right endpoints

Mental Math Activities

Section 2.1 Properties of Numbers

3 Chapter Whole Numbers and Their Operations

Unit 4 Lesson 10 Estimate Products Use Rounding to Estimate Products.

Finding a Percent of a Number

Multiplication Properties

Objectives Use the Commutative, Associative, and Distributive Properties to simplify expressions.

1.3 Properties of Numbers.

Estimate the area from 0 to 5 under the graph of {image} using five approximating rectangles and right endpoints

Division Vocabulary Review.

Presentation transcript:

Mathematical Task 4.1A

Use compatible numbers to perform mental calculations. Objectives: Apply commutative, associative, and distributive properties to perform mental calculations (Mental Math). Use compatible numbers to perform mental calculations. Use various techniques of compensation to do mental calculations. Use Left-to-Right Method, Multiplying by Powers of 10 and Multiplying by Special Factors to do mental calculations. Use different processes of Computational Estimation to approximate and answer to a computation. Apply Range/Front-End Estimation/ to approximate answers to computations. Apply Rounding Techniques (Round up/down/to 5/to nearest even/ to compatible numebrs to approximate answers to computations. Mathematical Task 4.1A

Mathematical Task 4.1B

Mathematical Task 4.1C

Using a Calculator