Locating randomly generated decimals on a number line

Locate the three randomly generated decimals on the number line. Press "Show/Hide" to see how close your estimates were.

Adding and subtracting integers

You can practice addition and subtraction of negative and positive numbres with this applet. Change the numbers and the sign and look at the answer in the line
Adding and subtracting integers
1. Use the applet to solve these operations:[br]a) (-2) + 6 = [br]b) 1 - (-7) = [br]c) (-2) - 7 =[br]d) 7 - 5 = [br]e) 8 - (-2) = [br]f) (-1) - 0 =[br]g) (-1) - (-2) = [br]h) (-2) + 5 = [br]i) (-6) + 2 =[br]j) 7 - 4 = [br]k) 8 - (-2) = [br]l) (-5) - (-6) =[br][br]2. Try to write a rule to take out the brackets depending on the sign of the numbers[br]3. In some cases you can see a third arrow. What do you think it means?[br][br][br]Ricardo García Mesa, matesytic@gmail.com

Measuring Angles Using Protractor

[b](Updated: 8 Sept 2016)[/b][br]Measure the angle using the protractor.[br]Drag the protractor to appropriate position. Drag the red point to rotate it.[br]Drag the green points or press the "Random" button to adjust the angle.
Anthony Or. GeoGebra Institute of Hong Kong.

Reflection across axes

Move blue points or type their coordinates at top left. Choose whether those points will be reflected across the x-axis or the y-axis. Reflected points are shown in purple.
Reflection across axes

Vastaluku ja käänteisluku

Vastaluku
Luvun [math]a[/math] [b]vastaluku [/b]on [math]-a[/math]. Näiden lukujen summa on nolla: [math]a+\left(-a\right)=0[/math].[br][br]Tutki oheisen sovelman avulla, miten luku ja sen vastaluku sijaitsevat lukusuoralla.
Käänteisluku
Luvun [math]a[/math] käänteisluku on [math]\frac{1}{a}[/math]. Sitä merkitään myös [math]a^{-1}[/math]. Näiden lukujen tulo on aina yksi: [math]a\cdot\frac{1}{a}=1[/math].[br][br]Tutki oheisen sovelman avulla, miten luku ja sen käänteisluku sijaitsevat lukusuoralla.

All solids of Platon rotate

Linear Functions

[b]Levels 1 & 2:[/b] Place the two blue points on the graph to determine the line and then hit the "Check Answer" button. [br][br][b]Levels 3-7:[/b] Enter your equation into the input box, hit the "enter" key and then the "Check Answer" button.
Linear Functions

Random Flipping of Coins

This worksheet will simulate the random flipping of up to 25 coins while keeping track of the number of heads in each sample.[br][br]If you change the sample size, you should also click on the "Clear Data" button. The largest sample size you can choose is 25.

LR1-01-XT1 (Add and subtract one-step equations)

This was created for the [url=https://cemc.uwaterloo.ca/resources/courseware/grade-9-10-11.html]CEMC Grade 9/10/11 courseware[/url]. Search the [url=https://cemc2.math.uwaterloo.ca/resources/courseware/grade-9-10-11-interactive-library.php]interactive library[/url] to find the associated lesson.

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