Multiply by 3 using the grouping of objects and arrays. Explore the Multiply by 3 facts using the grouping of objects and arrays. Compete against characters to see who finds the product first.

Multiplying and dividing whole numbers by numbers greater than 0 and less than 1 can be broken into a whole number calculation followed by multiplying or dividing by a power of 10, for example 10, 100 ...

Multiplication of two numbers is easy, right? At primary school we learn how to do long multiplication like this: Methods similar to this go back thousands of years, at least to the ancient Sumerians ...

Multiplication is a fundamental skill in mathematics, but some number combinations can appear tricky. Imagine being able to quickly multiply numbers like 35 x 35 or 65 x 65 in your head, almost ...

Start by completing the calculation using positive numbers first, then use the sign rules to find the sign of the answer. Image caption, This multiplication table includes both positive and negative ...