abacus shapes vs ClassroomMathFacts

You can do exercises of following calculations. Addition, Subtraction, Multiplication, Division, Flash addition, practice of abacus. This app is good for children, children can learn the basics of mathematics or A.I. technology. And It's also good for adults' reeducation too. Adults can brush up there calculation ability or it's useful for prevention of dementia or alzheimer's diseases. Furthermore, you can see some of basic principles of math with intuitive solid shapes. This will promote your understanding of math. And this app serves as toys that won't make your room messy. It is said that the chimpanzee are smarter than humans in terms of short-term memories. Humans short-term memories have degenerated, as ability of language has developed. Young children who are not totally dependent on language may be able to exercise chimps-like ability. In this app, a memorization method using language is proposed to retain short term memories, but it's not as quick as visual memorization method. What do you think of it? Mathematics isn't powerless. Maths is the basics of chemistry and biology and medical science. Computer is a product of maths, chemistry, and physics. You can use computer to make people immortal someday. Using sensors and cameras to monitor the body, detecting some problems, and cure them. There are some promising medical technologies like Gene therapy, iPS cells and so on. I hope someday humanity will conquer every diseases and death. If people conquer death, then things like sorrow, anxiety, sadness will go away. Please tell children to use this app, and let them achieve this goal. File saving function has been added. You can copy, edit, or rename csv file with PC. Now, you can add your own PNG images to this abacus. Please design your unique images of numbers like examples. To do so, you need to tap the Files icon of iOS and the folder of abacus game. Duplicate the data_5.csv file and PNG_5 folder, rename them like data_8.csv and PNG_8. Then register another number and string you want to add to the data_8.csv file and put another PNG images corresponding to the number you've registered into the PNG_8 folder. Check the brain icon in the setting page of how to read numbers. You can see these images in the process of calculation of abacus. You can share your way of reading numbers with your children, friends, and the world. Your intelligence and wisdom would be helpful to the people in the world. Please enjoy calculation with abacus.

Classroom Math Facts is a math practice app designed for students in Kindergarten through Grade 6. Whether you're teaching in the classroom, helping at home, or practicing independently, you can start learning immediately—no account or internet connection required. Features • Grade-Based Problem Generation Problems automatically match each grade level. Kindergarten focuses on addition and subtraction within 10, while higher grades include multiplication, division, and mixed operations. • Multiple Practice Modes Practice addition, subtraction, multiplication, division, or mixed operations to build strong arithmetic skills. • Classroom Projector Mode A full-screen teaching mode with large, high-contrast text. Reveal answers with a tap and automatically move to the next question—perfect for classroom instruction. • Timed Practice Enable a timer to improve speed, accuracy, and confidence. • Printable PDF Worksheets Generate worksheets with answer keys for printing or sharing with students. • Practice History Review previous sessions to track accuracy and progress over time. • Bilingual Interface Available in English and Simplified Chinese. Privacy Your privacy comes first. No account required No ads No tracking No personal data collected All data stays on your device If you delete the app, all stored practice data is permanently removed.