Arithmetic

Arithmetic is the foundation of all mathematics, covering operations on numbers including fractions, decimals, percentages, and powers. This topic builds fluency with order of operations, ratios, proportions, and modular arithmetic, which are essential prerequisites for algebra and beyond.

Strong arithmetic skills speed up every other math course and are used daily in budgeting, cooking, shopping, and any career involving data or measurement.

Practice Tips

• 1When simplifying fractions, always find the greatest common factor of the numerator and denominator first.
• 2Use PEMDAS consistently, but remember that multiplication and division are evaluated left to right at the same level, not multiplication first.
• 3For modular arithmetic problems, reduce large numbers step by step rather than computing the full value and then finding the remainder.