Addition & subtraction strategies to solve two-digit equations using an open number line.

Activity: How to subtract two-digit numbers Discover all about subtracting two-digit numbers with this interactive activity, then put your knowledge to the test.

SUBJECTS: Maths YEARS: F–2 Learn the "counting back" strategy to help you solve tricky subtraction problems. In this lesson, Miss James demonstrates how to use a number line correctly, and she ...

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 ...