Jean did 17 sit-ups on Monday, 19 sit-ups on Tuesday,and 22 sit-ups on Wednesday.If she continued at this rate, how many sit-ups would she do on Sunday ?
So first find the pattern. 17,19,22. So just subtract the numbers to get the pattern! 19-17=2. So, 2 is the pattern! So it stops on Wed right? So add 2 to the numbers until Sunday!