Addition

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6th grade math knowledge map info

Test how well you know fourth-grade math vocabulary

In this video, Salman Khan of Khan Academy shows you how to add and subtract fractions.

In this video, Salman Khan of Khan Academy demonstrates adding and subtracting negative numbers.

Interactive math tools and games

Links to generate worksheets for grade 1 math

Worksheets dealing with decimals and fractions, adding, subtracting, multiplying and dividing.

Worksheet generator for single-digit addition problems

This page explains the commutative, associative, and distributive properties and gives examples of each.

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