Short Cycle Assessment #3 Review

DecimalsEquivalent DecimalsComparing DecimalsAdding & Subtracting

DecimalsProblem Solving with

Decimals

What is a decimal?

A decimal is a number that shows tenths, hundredths,Thousandths, and so on, by using a decimal point.

Introduction to Decimal Numbers!

Below is a WONDERFUL interactive lesson on Decimals. This link takes you to the homepage, so all you have to do is click on “Skip Intro”, then click on“Lessons” and then click on “1. Decimals”.

http://www.learnalberta.ca/Launch.aspx?content=%2fcontent%2fmesg%2fhtml%2fmath6web%2fmath6shell.html

Equivalent Decimals

http://www.hbschool.com/activity/con_math/g05c03.html

Equivalent Decimals are different names for the same amount.

Write an equivalent decimal for each.

0.8 0.80

1.70 1.7

0.900 0.9

15.08 15.080

Try this matching game: Find the equivalent decimals!!!

Comparing Decimal Numbers!

Line ‘Em Up

Solve. Explain your work.Put these decimals in order from least to greatest.

3.2 3.13 3.09 3.3 3.10

Answer is on the next slide!

3.09 Line up the decimal3.10 points and compare!3.133.20 Add Zeros to help you!3.30

Write about it:Are decimals with two digits to the right of the decimalpoint always greater than decimals with one digit to the right of the decimal point? Explain.

Click here to practice more with comparing decimals!http://www.bbc.co.uk/education/mathsfile/shockwave/games/laddergame.html

Adding & Subtracting Decimals

The most important thing to remember when adding & subtracting decimals is to ________________________

LINE UP THE DECIMAL POINTS!!!

4.8 + 3.3 =

12.45 + 8.46 =

9.5 - 6.7 =

62.32 - 3.38 =

8.1

20.91

2.8

58.94

Problem Solving With Decimals

When it comes to problem solving you have to:

1. UNDERSTAND

2. PLAN

3. SOLVE

4. LOOK BACK

Let’s Practice, Shall We!!!

Try this one first

http://www.kidzone.ws/math/wp/halloweenwp4.asp

Take another look at Fractions! REMEMBER TO SHOW WORK AND DON’T GIVE UP!!!

http://www.iknowthat.com/com/L3?Area=FractionGame

Check out these sites on how decimalsAnd fractions relate!

On the website below, Click on “Fraction and Decimal Match!”And then begin matching the decimal to the

Fractions before time runs out!!!

http://www.amblesideprimary.com/ambleweb/mentalmaths/fracto.html

“The Decifractator”: This website allows you to create your ownfraction and then change it to a decimal!

http://pbskids.org/cyberchase/games/decimals/decimals.html

Someone has removed some of the tracks on the Trans-cyberspace Railroad! Its up to you to repair the Tracks so the train can get back to Central Station.You’ll need to drag tracks to fill the missing spaces!GOOD LUCK!

http://pbskids.org/cyberchase/games/decimals/decimals.html