'Mental math' presentation slideshows

Welcome

Welcome. Welcome to content professional development sessions for Grades 6-8. The focus is Proportional Reasoning . Proportional reasoning includes fractions as ratios, rates, ratios, and proportions. It extend understanding about division and part-whole relationships.

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THE BIG IDEAS OF MULTIPLICATION AND DIVISION

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Understanding Dyscalculia

Understanding Dyscalculia. Speaker Information Kay Haralson Associate Professor of Mathematics Developmental Studies Program Austin Peay State University Clarksville, TN 37044 haralsonk@apsu.edu www.apsu.edu/haralsonk. Understanding Dyscalculia. Definitions of Dyscalculia

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Last Lecture

+. Last Lecture. Frontal Lobe Anatomy Inhibition and voluntary control A model task: working memory . This Lecture. Long Term Memory role of hippocampus in consolidation role of frontal regions in encoding and retrieval right frontal regions and representation of self. Announcements.

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Financials for an Elevator Pitch

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Multiplication Properties

Multiplication Properties. Shirley Garrett 5 th Grade. Multiplication Properties. Commutative Property Associative Property Identity Property Zero Property Distributive Property. Why Should you Learn about the Properties of Multiplication?.

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Why visual analytics?

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Virginia Bastable TDG 2011

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Properties and Mental Math

Properties and Mental Math . #3. Vocabulary. Vocabulary. Caution!. The Commutative and Associative Properties do not apply to subtraction or division. Example 1: Using Properties to Add and Multiply Whole Numbers Simplify 17 + 5 + 3 + 15.

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6-3 Estimating with Percents

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Adjusting numbers in a problem to make mental math easier

COMPATIBLE NUMBERS. Adjusting numbers in a problem to make mental math easier. Example Tell the sum of the following group of numbers. 4 + 9 + 7 + 3 + 11 + 1 + 6. 4 + 9 + 7 + 3 + 11 + 1 + 6. How can we easily add these numbers?. Can you find groups of ten?

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Adjusting numbers in a problem to make mental math easier

COMPATIBLE NUMBERS. Adjusting numbers in a problem to make mental math easier. Example Tell the sum of the following group of numbers. 4 + 9 + 7 + 3 + 11 + 1 + 6. 4 + 9 + 7 + 3 + 11 + 1 + 6. How can we easily add these numbers?. Can you find groups of ten?

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Notes 27

Notes 27. Estimating With Percents 6-2. 1 3. 2 3. Percent. 33 %. 66 %. 1 10. Fraction. The table shows common percents and their fraction equivalents. You can use fractions to estimate the percent of a number by choosing a fraction that is close to a given percent. 10%. 20%. 25%.

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Review Unit 6

Review Unit 6. Mental Math.

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EXAMPLE 1

3. =. 60. 75% of 60. 4. 180. =. 4. 45. =. ANSWER. 75% of 60 is. 45. EXAMPLE 1. Finding The Percent of a Number. a. Find 75% of 60. Use a fraction. 74. 0.1 . 10% of 74. =. 7.4. =. 7.4. 10% of 74 is. ANSWER. EXAMPLE 1. Finding The Percent of a Number. . b.

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Review for Quiz B

Review for Quiz B. Commission, Sales Tax, Withholding Tax, Mental Math, & Estimating. A car sales associate sold a car for $22,450. If he earns 1.5% commission, how much was his commission?. Remember, Commission is the part the salesman keeps. . Method 2: Use an equation

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Mental Math for Addition and Subtraction

Mental Math for Addition and Subtraction. Lesson 2.1. Commutative Property. Associative Property. Addition Properties. Numbers can be added in any order. Addends can be grouped in different ways, resulting in the same sum. 64 + 78 = 78 + 64. (14 + 54) + 6 = 14 + (54 + 6).

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