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Equations

Equations. Some basics and some web references. National library of virtual manipulatives. Equations. Do the same to both sides to retain equality Undo an operation by using their inverse Inverse of addition is subtraction Inverse of subtraction is addition

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Equations

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  1. Equations Some basics and some web references

  2. National library of virtual manipulatives

  3. Equations • Do the same to both sides to retain equality • Undo an operation by using their inverse • Inverse of addition is subtraction • Inverse of subtraction is addition • Inverse of multiplication is division • Inverse of division is multiplication • Inverse of squaring is taking the square root • Inverse of taking the square root is squaring • Inverse of reciprocal is ????? • Getting a variable on its own is the aim • What is the easiest thing to undo first? Reciprocal

  4. Transposing equations • http://www.youtube.com/watch?v=HyH9-5tnS0A&feature=related • http://www.youtube.com/watch?v=BCnrcNW9Ay8&feature=related • http://www.youtube.com/watch?v=dH_33ovhOuU • http://www.youtube.com/watch?v=hL3Vc76ax8I • http://www.youtube.com/watch?v=UrtDOQElCNc&feature=relmfu • http://www.youtube.com/watch?v=2lpAw9Ok00c&feature=related • http://www.youtube.com/watch?v=5osqCYZPbH0&feature=related • http://www.youtube.com/watch?v=ns0vQPsLelY • http://www.youtube.com/watch?v=DO-hzLh79uw&feature=endscreen&NR=1 very good • http://www.youtube.com/watch?v=KiBZ2GYpNLY&feature=related inverse operations • http://www.youtube.com/watch?v=WWuJqeQpgow advanced

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