Question

Rena wrote all the integers from 1 to 12. How many numbers did she write?

Answer 1

Answer:

15

integers from 1 to 9 have only one number each, so in total 9 numbers. integers from 10 to 12 have 2 numbers each, 3*2=6. 9+6=15

Answer 2

Answer:

She wrote 12 integers

Step-by-step explanation:

This is because you have to count 1 to 12 including 1 and 12