Decimal Ops

Investigation 1—Decimal Operations and Estimation

1.1—Out to Lunch: Matching Operations and Questions

1.2—Getting Close: Estimating Decimal Calculations

1.3—Take a Hike: Connecting Ratios, Rates, and Decimals

Investigation 2—Adding and Subtracting Decimals

2.1—Getting Things in the Right Place: Adding Decimals Adding Decimals Explained Adding Decimals Soccer

2.2—What’s the Difference?: Subtracting Decimals Subtracting Decimals Explained Decimal Subtraction Basketball

2.3—Connecting Operations: Fact Families Decimal Fact Families Explained Video BrainPOP Unit Rates Review Game Unit Rate Review Game: Sheppard Software Unit Price Practice

Multiplication and Division Review (Basic Facts): Fruit Splat Croc Doc Ordering Decimals Balloon Pop

Investigation 3—Multiplying and Dividing Decimals

3.1—It’s Decimal Time(s): Multiplying Decimals I

3.2—It Works Every Time: Multiplying Decimals II Multiplying Decimals Algorithm Multiplying Decimals Practice Multiplying Decimals Racing Practice Multiplying Decimals Prodigy

3.3—How Many Times?: Dividing Decimals I Dividing Decimals Explained

3.4—Going the Long Way: Dividing Decimals III

3.5—Challenging Cases: Dividing Decimals III Dividing Decimals Practice Football Dividing Decimals Cruncher

Decimal Division Video Tutorials:

Brainpop: Division Flocabulary: Long Division Khan Academy Video: Long Division

Brainpop: Dividing Decimals Flocabulary: Dividing Decimals Khan Academy Video: Long Division with Decimals

Investigation 4—Using Percents

4.1—What’s the Tax on This Item? Tax Practice Decimals to Percents Jeopardy Percents, Decimals and Fractions Fractions, Decimals, Percents Balloon Pop

4.2—Computing Tips Calculating Tips Practice Tips and Tax More Difficult

4.3—Percent Discounts Math at the Mall Matching Percent of a Number

4.4—Putting Operations Together

Jobs/Taxes Project

Jobs/Taxes Project Data Google Form

Equivalent Fractions, Decimals, and Percents:

• Fraction, Decimal, Percent Explanation:http://www.mathsisfun.com/decimal-fraction-percentage.html
• Decimal to Percent: http://www.mathsisfun.com/converting-decimals-percents.html
• Percent to Decimal: http://www.mathsisfun.com/converting-percents-decimals.html
• Percent to Fraction: http://www.mathsisfun.com/converting-percents-fractions.html
• Fraction to Percent: http://www.mathsisfun.com/converting-fractions-percents.html
• Fraction to Percent: http://www.mathplayground.com/Decention/Decention.html
• Fraction to Percent: http://www.sheppardsoftware.com/mathgames/fractions/FractionsToDecimals.htm
• Fraction to Percent: http://www.mathplayground.com/matching_fraction_percent.html
• Fraction to Percent: http://www.ictgames.com/equivalence.html

Percents “Of” a Number (such as 25% of 200):

Matching Picture and Percent

http://www.mathplayground.com/balloon_invaders_percent.html

http://www.quia.com/cb/42534.html

http://www.mathplayground.com/percent01.html

http://www.glencoe.com/sec/math/studytools/cgi-bin/msgQuiz.php4?isbn=1-57039-850-X&chapter=4&lesson=2

http://www.glencoe.com/sec/math/studytools/cgi-bin/msgQuiz.php4?isbn=1-57039-850-X&chapter=4&lesson=3

http://www.mathsisfun.com/numbers/estimation-game.php

http://www.mathebook.net/elementary/virtual/percent.htm

http://nlvm.usu.edu/en/nav/frames_asid_160_g_3_t_1.html?open=activities

http://www.sheppardsoftware.com/mathgames/percentage/MatchingPercentNumber.htm