ACCUPLACER Arithmetic

ACCUPLACER Arithmetic focuses on essential arithmetic skills necessary for success in higher education and various standardized tests.

Whole Numbers and OperationsFractions and DecimalsPercentages
Order of OperationsRatios and ProportionsEstimating and Rounding
Budgeting and Money MathCooking and RecipesShopping and Discounts
Use Scratch Paper for CalculationsCheck Your Reasonableness
Whole Numbers and Op...Fractions and Decima...PercentagesOrder of OperationsRatios and Proportio...Estimating and Round...Budgeting and Money ...Cooking and RecipesShopping and Discoun...Use Scratch Paper fo...Check Your Reasonabl...
Basic Concepts

Whole Numbers and Operations

Understanding Whole Numbers

Whole numbers are the numbers you count with: 0, 1, 2, 3, and so on. They're the building blocks of arithmetic, and you'll use them everywhere!

Operations: Add, Subtract, Multiply, Divide

There are four main ways to work with whole numbers:

  • Addition (\(+\)): Putting numbers together.
  • Subtraction (\(-\)): Taking one number away from another.
  • Multiplication (\(\times\)): Repeated addition.
  • Division (\(\div\)): Splitting into equal parts.

Why This Matters

Mastering these basics helps you solve problems in school, shopping, and even gaming scores!

Tips & Tricks

  • Always line up numbers by their place value for addition and subtraction.
  • Practice multiplication tables for speed and accuracy.
  • Division can be checked by multiplying your answer by the divisor.

Examples

  • Adding: \( 27 + 15 = 42 \)

  • Dividing: \( 144 \div 12 = 12 \)

In a Nutshell

Learn to confidently add, subtract, multiply, and divide whole numbers.

Key Terms

Whole Number
Any of the numbers 0, 1, 2, 3, ... without fractions or decimals.
Operation
A mathematical process like addition, subtraction, multiplication, or division.
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Fractions and Decimals