You block numbers, turn on Do Not Disturb ... while most businesses and human beings come up as identifiable phone numbers. Chances are, you could terminate all anonymous calls without missing ...

Here we have used counters, number blocks, a part whole model, a place value chart, a tally chart, and coins. You can also write it in different ways but they all show the same value. Here are ...

If an unknown number calls, users can manually block those callers through their recent call log or by using a third-party call-blocking application, such as Hiya, RoboKiller or Truecaller.