Multiplication Pyramid

WALT: Complete the pyramid using no calculator.

This week for an exercise for our brain, we completed a multiplication pyramid. Usually our teacher allows us to use the calculator for the top three numbers. Instead of that, she made us work it out on our own. That's exactly what I did. I did use the calculator to check the answers but not multiply. My working out is on the side of the pyramid in the google drawing.

Multiplication Pyramid

WALT: Practice our multiplication.

Most weeks we use the Multiplication Pyramid to get our brains started for the week. How it works is...

when you first get there are only the bottom layer of number, multiply the numbers and put the answer in the top box. For example, in the bottom left corner of the pyramid the multiplication equation would be... 5 x 1. My answer is in the box above.

Multiplication Pyramid

WALT: Practise our multiplication.

This week in maths we had a pyramid to multiply. So how it works is the you multiply the first row. For example, 9 x 2 on the right hand bottom corner. That would equal to 18. 

Multiplication Pyramid

WALT: Find a rule to a sequential pattern

For this activity, we used our multiplication skills to find out the top number.  As you can see the numbers keep getting bigger and bigger.  How this pyramid works is that the numbers next to each other is multiplied by each other.  For example:

This 5 and 2 are multiplied by each other to make 10.

I did this all the way up the pyramid until I got to the number 192,756,122,160.  Also known as one hundred and ninety two billion, seven hundred and fifty six million, one hundred twenty two thousand and one hundred and sixty.