Basic Mathematics Calculators
Numbers, operations, fractions, decimals, percentages, ratios, and everyday arithmetic. Choose a tested tool below for a clear result, formula, and explanation.
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Showing 51 ready calculators
Arithmetic & Core Operations
Add, subtract, multiply, divide, and evaluate everyday number problems.
- Addition Calculator
- Arithmetic Word Problem Calculator
- Basic Calculator
- Big Number Calculator
- Division Calculator
- Long Addition Calculator
- Long Subtraction Calculator
- Missing Number Calculator
- Multiplication Calculator
- Order of Operations Calculator
- Programmer Calculator
- Scientific Calculator
- Subtraction Calculator
- Significant Figures Addition and Subtraction Calculator
- Significant Figures Calculator
- Significant Figures Multiplication and Division Calculator
Multiplication & Division Methods
Use written, visual, and remainder-based methods for exact calculations.
Decimals & Conversions
Work with decimal place value, ordering, operations, and fraction conversions.
- Adding Machine Calculator
- Decimal Addition Calculator
- Decimal Comparison Calculator
- Decimal Division Calculator
- Decimal Multiplication Calculator
- Decimal Ordering Calculator
- Decimal Place Value Calculator
- Decimal Subtraction Calculator
- Decimal to Fraction Calculator
- Fraction to Decimal Calculator
- Repeating Decimal to Fraction Calculator
- Terminating or Repeating Decimal Calculator
Rounding & Number Rules
Apply rounding modes, integer bounds, truncation, and precision rules.
- Banker's Rounding Calculator
- Ceiling Calculator
- Floor Calculator
- Half Away from Zero Calculator
- Half Down Rounding Calculator
- Half Toward Zero Calculator
- Half Up Rounding Calculator
- Round Down Calculator
- Round to Nearest Multiple Calculator
- Round Up Calculator
- Rounding Calculator
- Significant Figures Rounding Calculator
- Truncation Calculator
Fractions, Ratios & Proportions
Represent parts of a whole and compare quantities exactly.
Percentages & Rates
Calculate percentages, rates, changes, and proportional comparisons.