TACHS Math

Comprehensive study of tachs math covering fundamental concepts and advanced applications.

Numbers and OperationsFractions, Decimals, and PercentsRatios, Proportions, and Rates
Algebraic Expressions and EquationsGeometry: Shapes, Area, and VolumeData Analysis and Probability
Budgeting and Money MathMeasuring and EstimatingPlanning and Scheduling
Time Management on the TestUsing Estimation and Elimination
Numbers and Operatio...Fractions, Decimals,...Ratios, Proportions,...Algebraic Expression...Geometry: Shapes, Ar...Data Analysis and Pr...Budgeting and Money ...Measuring and Estima...Planning and Schedul...Time Management on t...Using Estimation and...
Study Strategies

Using Estimation and Elimination

Smart Guessing

You don’t always need the exact answer! Use estimation to narrow down choices. Eliminate answers that don’t make sense—this boosts your chances of picking the right one, even if you’re unsure.

  • Round numbers to make math easier
  • Cross out obviously wrong answers
  • Trust your math sense

Examples

  • Estimating that the answer to 49 x 51 is close to 2500, so pick the closest choice.

  • Eliminating options that are way too high or too low for a story problem.