Subtraction Math Trainer vs The Blue Map

Subtraction Math Trainer is a math learning app designed to help you to practice subtraction. The built-in handwriting recognition allows you to draw answers directly on the screen. Comes with a number of simple mini-games to make learning more effective and less boring. You can practice the following math skills: Subtraction facts - numbers up to 10 Subtraction facts - numbers up to 18 Subtract a multiple of ten Relate addition and subtraction Subtraction facts - numbers up to 20 Subtract a one-digit number from a two-digit number Subtract two two-digit numbers Subtract multiples of 10 Subtract multiples of 100 Subtract multiples of 10 or 100 Balance subtraction equations Subtraction facts - numbers up to 100 Subtract two three-digit numbers Complete the subtraction sentence up to three digits Subtract numbers with four or five digits Balance subtraction equations up to three digits

USA or China is more powerful? Nuclear Warheads – who is the leader on Earth? There are more women or men in the world? Discover these mysteries with 'The Blue Map' app!! Your child asks you dozens of questions about our world? You travel to a new country and you want discover the most essential information about it? You want compare your country with another? Discover all countries of Earth with animated 'The Blue Map'! 'The Blue Map' contains: - all countries of Earth with visualization on the map, flags, coats of arms, capital cities, inhabitants - details of each country with information about dominant religion, size, density, GDP, currency, …, - comparison of 2 chosen countries, - map of countries by size - map of countries by population - map of countries by density - map of countries by dominant religion - map of countries by driving side - map of countries by GDP (PPP) - map of countries by GDP (PPP) per capita - map of countries by GDP (nominal) - map of countries by GDP (nominal) per capita - map of countries by currency - map of countries by continent - map of countries by Gini rate - map of countries by HDI Index (Human Development Index) - map of countries by Nuclear Weapons - map of countries by CO₂ Emission - map of countries by Sex Ratio - map of countries by Natural Increase - map of countries by Life Expectancy - map of countries by Number of Cars - map of countries by Number of Doctors (Physicians) - map of countries by Number of Hospital Beds per 1'000'000 inhabitants 'The Blue Map' bases on the most recent information and materials disponible in the greatest world library - Wikipedia (wikipedia.com), UN statistics, World Bank and WHO statistics. This app proceeds and regroups data in order to present you the advanced analysis in a proper, synthetic and user-friendly visualized way.