Problem with “Prime and composite numbers intro” [solved]
A learner watching the video “Recognizing prime and composite numbers” in the “Prime numbers” series which is in the “Factors and multiple” category, learns at 0:58 into the video that 0 is considered a whole number.
If they have good memory, they will fail on a question on the review test “Prime and composite numbers intro” which is in the same series.
There’s this question:
Which of the statements are true about composite numbers?
Select all that apply.
-
All even numbers are composite.
-
All whole numbers that end in 0 are composite.
-
None of the above
They will check “None of the above”, because they know that 0, a whole number that ends in 0, is not composite.
The “Show answer” part will say:
“All numbers that end in 0 are divisible by 2, 1, and themselves. They have more than two factors so they are composite. So all whole numbers that end in 0 are composite.”
Which by what they have learned in the previous video is not true.A solution would be to say replace “whole number” with “natural number” in the review test.
Post is closed for comments.