Math

Subscribe to our ▶️ YouTube channel 🔴 for the latest videos, updates, and tips. Checking subtraction using addition is an easy way to verify whether a subtraction answer is correct. Since addition and subtraction are inverse operations, we can add the difference …

Anne Skeldon visited the University of Oxford in the beginning of April (30 March to 1 April) to attend the Oxford Glymphatic and Brain Clearance Symposium, held at Keble College (website here). It was a very popular event on a …

Subscribe to our ▶️ YouTube channel 🔴 for the latest videos, updates, and tips. Subtraction of 3-digit numbers with regrouping  are explained here with examples. As you borrow from the tens column, you can borrow from the hundreds column also. REMEMBER: 1 …

Alessandro Torrielli visited Durham University on Thursday 21st May to attend and speak at a workshop on “Integrability in (Quantum) Field Theory” (workshop website here). The work shop is part of the “Classical and Quantum Integrability Network”. Alessandro gave an …

In or out of school, the opportunities to learn and grow in your career are endless, and Wolfram is proud to bolster those with educational resources, from courses to textbooks. We are happy to share conversations with two authors whose …

Subscribe to our ▶️ YouTube channel 🔴 for the latest videos, updates, and tips. Mental math helps children solve addition problems quickly without writing them down. In this lesson, we will learn how to perform the addition of 2-digit numbers mentally using …

Polina Vytnova is spending an intermittent 5 weeks travelling back and forth to the Institute of Mathematics in the Polish Academy of Sciences (IM PAN), Warsaw. She is a co-organiser of a 5-week long research programme entitled “Simons Semester: Continued …

Every semester or two, students ask me about the implications of re-compression, especially of JPEG files. Compression comes in two main kinds—Lossless, which is completely invertible, meaning you get exactly what you put in when you decompress, and Lossy which …

Subscribe to our ▶️ YouTube channel 🔴 for the latest videos, updates, and tips. Help children practice solving real-life mathematical situations with this 4-Digit Addition Word Problems Worksheet. Students will learn how to add 4-digit numbers through engaging story problems, printable exercises, …

Bin Cheng was in Paris the week of 20-24 April to attend and speak at a Workshop on “Vortices and vorticity in geophysical flows“, held at the historic Institut Henri Poincaré, Paris (link to workshop website here). The workshop was …