PDF (Acrobat) Document File
Be sure that you have an application to open this file type before downloading and/or purchasing.
0.32 MB | 1 pages
This grade 3 math fluency page provides practice in using the strategy of 'see 19, think 20' by adding 20 to a number and then subtracting 1. (27+19=___ could be viewed as 27+20=47, then subtract 1=46)