Skip over navigation
The next digit of the answer is 5.
There are a number of ways of exploring around this area, don't rush.
You might try 'trial and improvement' as one way to work towards a square root of say 30, 50 or any other number.
Try this new method to find square roots for 30, 50, etc., then check with a calculator to see that it's working out correctly. Listen again to the audio as many times as you need. There's a lot of calculation to follow.
When you are ready, think about the harder questions:
Unusual Long Division - Square Roots Before Calculators
Age 14 to 16
Challenge Level 
The next digit of the answer is 5.
There are a number of ways of exploring around this area, don't rush.
You might try 'trial and improvement' as one way to work towards a square root of say 30, 50 or any other number.
Try this new method to find square roots for 30, 50, etc., then check with a calculator to see that it's working out correctly. Listen again to the audio as many times as you need. There's a lot of calculation to follow.
When you are ready, think about the harder questions:
-
Why multiply by 2 and by 10?
-
And why look for an end digit that is also the digit you use to multiply?
You may also like
Triangle Incircle Iteration
Keep constructing triangles in the incircle of the previous triangle. What happens?
Vedic Sutra - All from 9 and Last from 10
Vedic Sutra is one of many ancient Indian sutras which involves a cross subtraction method. Can you give a good explanation of WHY it works?
Tournament Scheduling
Scheduling games is a little more challenging than one might desire. Here are some tournament formats that sport schedulers use.