Kenny wants to make sure he does more jumping jacks every week than he did the week before. He recorded that last week he did 324 total jumping jacks. On Saturday of this week, he looks at his records and sees that on Sunday he did 34. On Monday he did 20. On Tuesday he skipped a day. On Wednesday he did 123. On Thursday he did 64. On Friday he did 23. How many does he have to do on Saturday to make sure he beats last week's number?
He has already done 264 this week because 34 + 20 + 123 + 64 + 23 = <<34+20+123+64+23=264>>264.
If he does 60 he will have done as many as last week because 324 - 264 = <<60=60>>60
He has to do 61 on Saturday because 60 + 1 = <<60+1=61>>61
#### 61