In this KS1 Maths article you'll learn what number lines are and how to add and subtract using them. We also have KS1 Maths videos, a quiz and lots of examples.

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 ...

Special vocabulary used in this lesson: Addition Number line Counting-on strategy; 2. Remember that when you use the counting-on strategy to think of the bigger number first.