Arithmetic Trainer

Times Tables

Single-digit multiplication (1 to 9 × 1 to 9), type your answer

Mental Math Warmup

Addition, subtraction, multiplication, percentages, and fractions

Scientific Notation Conversion

Convert decimals and large numbers to/from scientific notation

Notation Arithmetic

Multiply, divide, add, and subtract values in scientific notation

Estimation & Rounding

Multi-digit products, quotients, and square root approximations

Logarithms

pH, pKₐ, log of powers of 10, and log of products

Mol Conversions

Convert between grams, moles, and molecules using Avogadro's number and molar mass

Dimensional Analysis

Multi-step unit conversions common in MCAT passages

SI Prefixes

Prefixes and number of zeros, and whether each is more or less than 1

Mixed Practice

Random draw across all tiers