Cut the Knot
Cut the Knot: The Floor Function
This site explains the floor function [x] notation (also known as the greatest integer function). The site contains several examples and graphs to help understand the concept. There is also an advanced exercise using the floor function...
SEN Teacher
Sen Teacher: Multiplication Grid
Customize and print out a multiplication grid for use as a classroom handout. You can select grids of 10 or 12 and color or black and white.
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