heres your answer felixgumain
Activity 1
1. the green in the problem are 140 books and then books per shelf and oversee wants to know how many shelve will be filled by the book ?

2. divisibility rule by 10 is 140 divisible by 10

3. 140 and with 0 meaning any number ends with 0 is divisible by 10 therefore 140 is divisible by 10

4. 14_
10)140
10
040
040
0​