Pre-algebra index

These concepts are fundamental to success in higher math classes such as Algebra, Geometry, and Calculus. We will review operations with whole numbers, then move on to learn how to perform operations with integers, fractions, and decimals. We will wrap up our course by learning how to find the mean, median, and mode for a group of numbers, along with how to convert between various units of measurement. -- https://www.greenemath.com/Prealgebra.html

Note: This subject also serves as a revision in most concepts from 0-0 Arithmetic index.

My notes: See below. No pen & paper notes.

You'll want to learn the topics listed below. At revision I split the list into known topics and those needing a review.

Reviewed, made new cheat sheets

Known

  • Whole numbers
    • Place value
    • Expanded form based on place value e.g 4,356 == 4 thousands, 3 hundreds, 5 tens, 6 units
    • Inequalities (<, >) & the number line (left of, right of)
    • Rounding
    • Adding on a number line
    • Vertical addition
    • Subtraction on a number line
    • Vertical subtraction
    • Vertical multiplication
    • Multiplication with powers of ten
    • Intro to exponents (and why X = 1)
    • Order of operations
  • Integers
    • Introduction to integers
    • Abs value |abs|
    • Adding integers
    • Subtracting integers
    • Multiplying & dividing integers
    • Order of operations with integers
  • Fractions
    • Intro to fractions
    • Mixed numbers & improper fractions
    • Simplifying Fractions
    • Operations with Mixed Numbers
  • Decimals
    • Comparing & Rounding Decimals
    • Adding & Subtracting Decimals
    • Multiplying Decimals
    • Changing Fractions to Decimals
    • Percentages
  • Measurement
    • Mean, median and mode
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Table Of Contents
Pre-algebra index
Reviewed, made new cheat sheets
Known