Features: 1. Voice Calculator - Hear numbers and calculation result - Cute dinosaur theme - Four operators + - × ÷ 2. Calculation history - Copiable calculation result - Copiable entire expression 3. Arithmetic Exercise - Unlimited random questions - Preschool to elementary school - Various difficulty levels * Sums with 10 * Subtracting from 10 * Adding within 10 * Subtracting within 10 * Adding and subtracting within 10 * Adding within 20 * Adding whole tens * Subtracting whole tens * Adding and subtracting within 50 * Adding and subtracting within 100 * Adding and subtracting within 1000 * Multiplication tables 1 to 5 * Multiplication tables 5 to 9 * Multiplication within 25 * Multiplication within 81 * Multiplication and division within 81 * Multiply by whole tens * Four operations within 1000 3. Secure - No sign-in required. - No personal information collected.
