By Vachel Simon at August 02 2019 00:32:40
Creating a Sum across worksheets. This is also an inter_active link. If a number changes on one worksheet, the sheet with the summary formula will also be updated. If a worksheet is inserted between worksheets in the sum, the sum will automatically be updated. Some of the disadvantages of this method are that all of the linked cells must be in the same location on all worksheets. Also, you can only sum one cell at a time (although you can copy the formula to other cells in the summary worksheet.) Using group mode to create identical spreadsheets will help when using the sum function across worksheets. This method is also limited to within a workbook and cannot be done across workbooks.
Know what you are buying. If you can't see it (there is no sample shown), then do not buy it. There are many people out there trying to make a buck off the current popularity of worksheets. Many, if not most, of these people know nothing about mathematics, teaching, or how the brain learns. Anyone can type columns of addition, subtraction, multiplication, etc. problems; but these worksheets will be bad for your child. Don't trust what you can't see.