Idea 13of 23Builds onGreater than, less than, equal to
Sort numbers with an IF
How can code put numbers into groups?
Today you'll discover
- how an IF can sort
- how to test for even
- how to check every tray
Think firstTray 1 for even numbers, tray 2 for odd
Which tray does 33 go to?
Decide first, then press Next. Each number answers one question and lands in one tray.
A flowchart: a diamond asks Is number even?. The yes path leads to SET 1, tray 1; the no path leads to SET 2, tray 2. 14 travels the yes path; 33 travels the no path. Along the bottom: 14 to tray 1, 33 to tray 2, 20 to tray 1, 7 to tray 2. The last step asks where 50 goes when tray 2 is for numbers over 50.
See the whole ideathe big idea and the key word, in one place
The big idea
An IF can sort numbers: each number answers the question and goes into one group.
Sorted
Even numbers 14 and 20 go to tray 1. Odd numbers 33 and 7 go to tray 2.
- 14tray 1
- 33tray 2
- 20tray 1
- 7tray 2
Easy to get wrongA big number is not always even. Only the ones digit decides: 33 is odd, and 50 is even.
Key word
- sort
- to put things into groups by a rule, such as even numbers in one tray and odd in another
Ready to use it?
- Sort numbers with a condition, and say which group each goes in.