Workbooks for kids to work on school skills?

[amcal]

My kids love educational workbooks. We've always just bought dollar store workbooks but, they only have preschool and kindergarten books.

So, we're going on a trip this summer and I wanted to get the kids some educational workbooks. I need a 1st grade and a 2nd grade book. Any recommendations?

[Princess ConsuelaB]

My 7 yo loves the Jumpstart workbooks published by Scholastic, she begs to do them(but that might be my weird kid). Her older sister liked these too, when she was that age.