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Fluently Add and Subtract

Author:NGN Tutor, Steve Phelps

Addition

Subtraction

New Resources

Line Through Two Points and Slope
Tangent Plane to a Sphere
Identify Opposite, Adjacent, Hypotenuse
Thales' Intercept Theorem
Portions of a Sphere

Discover Resources

Congruent Triangles
fxyForum
MOOO0
Rhombuses
Trapezoid!
Area of irregular figure 3

Discover Topics

General Quadrilateral
Geometric Transformations
Tangent Function
Arithmetic
Matrices

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