Math

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 …

Hi, Rory. Great post! Hear, hear, to Mark’s comments! I’ve done a lot of sleuthing in US and NYS census data, manually transcribing data that Ancestry.com doesn’t automatically handle. I’ve also relied on the many editions of the Buffalo City …

Subscribe to our ▶️ YouTube channel 🔴 for the latest videos, updates, and tips. We will learn adding 4-digit numbers with regrouping. Addition of 4-digit numbers can be done in the same way as we do addition of smaller numbers. We first …

Werner Bauer was in Vienna last week (3-8 May) to attend the European Geosciences Union 2026 General Assembly meeting. EGU 26 welcomed 22,497 registered attendees from 125 countries (main website here). Werner co-organised a session (with Jemma Shipton (Exeter), Daniel …

Subscribe to our ▶️ YouTube channel 🔴 for the latest videos, updates, and tips. We will learn adding 4-digit numbers without regrouping. Learn how to add 4-digit numbers without regrouping using simple step-by-step examples, solved problems, worksheets, word problems, and fun practice …

Werner Bauer was in Birmingham recently (27-28 April) to attend the kick-off event of the Academy of Mathematical Sciences AI Network (event website here). Werner was attending in his capacity as AI Lead in Mathematics at Surrey. The event involved …