Explains the concept of zero in mathematics, emphasizing its role as a number that represents the empty set. It illustrates how zero is used in addition and subtraction, showing that adding or ...

Mathematics Teaching in the Middle School (MTMS) is an official peer-reviewed journal of the National Council of Teachers of Mathematics and is intended as a resource for middle school students, ...

Mental maths is when you do calculations in your head instead of writing them down. Sometimes, it's just as quick to do calculations in your head as it is to write down every step. You can add and ...

Hello, I'm Mr Firth, and I need your help today as we learn to add and subtract within ten. You can use lots of things to help you add and subtract. Counters, number lines and even your fingers. Let's ...

Figure 2: Five-year-old children’s performance on approximate addition, subtraction and comparison problems. What processes underlie children’s symbolic approximate arithmetic? We first considered ...