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 ...

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 ...

Students put all their addition and subtraction skills together to solve equations.

Use different strategies to subtract including counting back and the connection between addition and subtraction. Use a number line to help count on to find a difference. Aired 12/07/2021 | Rating ...

Counting back 2 from 72 takes you to 70 on the number line, then another jump of 3 takes you to 67. Therefore 72 - 5 = 67 You can use part-whole diagrams to show subtraction too.

A learning/teaching approach used base-ten blocks to embody the English named-value system of number words and digit cards to embody the positional base-ten system of numeration. Steps in addition and ...