Addition & subtraction strategies to solve two-digit equations using an open number line. In this lesson, students go over using addition and subtraction strategies to solve two-digit equations using ...

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Space to play or pause, M to mute, left and right arrows to seek, up and down arrows for volume. Hello brainiacs, I'm Ms Kirszman. Let's get mathematical. I love receiving really challenging tasks to ...

A GCSE Maths video about adding and subtracting with negative numbers. The video shows how to use a number line and how to work out the answer by using number discs.