What does 5*6 mean?

It means 5 times 6.

5 x 6

5 X 6 = 30

Emma says the product of a 3 digit number and a 1 digit number will be either a 3 digit number or a 4 digit number

It means 5 times 6

The expression "5 * 6" represents the multiplication of the number 5 by the number 6. To find the result, you simply multiply the two numbers together. In this case, 5 multiplied by 6 equals 30.