Adding and subtracting negative numbers makes us really stop and think! Check out these videos for helpful hints to keep the rules fresh in your mind!
Adding negative numbers
Subtracting negative numbers
Fractions can be fun (think about how fractions and pie go together!) but you have to keep the rules straight. Brush up on the rules with these videos:
Adding Fractions (Unlike denominators)
Subtracting Fractions (Unlike denominators)
Multiplying Fractions
Dividing Fractions
You've been working with shapes for as long as you can remember and now you're ready to take it to the next level! Area, perimeter, circumference, volume-you're going to know it all! Here are some videos to help you along!
Khan Academy geometry videos
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