Compatible numbers are the numbers that are easy to add, subtract, multiply, or divide mentally (in your head).
Rounded numbers are an integer that ends with one or more "0"s.
Which box below represents compatible numbers and which box below represents rounded numbers?
Turn & Talk (level 1)
Which method of estimation do you think is easier, compatible numbers or rounded numbers? Why?
Sentence Stem:
I think the easier method of estimation is to use _______________ because __________________________.
Vocabulary
compatible numbers approximate round
rounded numbers estimate add/ subtract
Use a complete sentence to answer the following question.
Which method of estimation do you think is easier, compatible numbers or rounded numbers? Why?
