From grade 2 through 6, there are 14 separate topics with 512 actual problems that all use pie-shaped diagrams to cater to the INTUITION of all students. I use most of these and felt compelled to create these because of the needs of my own students.
The preview has 2 problems in each of the 14 topics and it is in grade order.
NOTE: After reviewing what is included here on 6/16/2015 I realized anew that these worksheets can be used to their fullest extent by an awful lot of elementary, middle school and secondary school teachers. Look at the PREVIEW and see for yourself.
[The problems in All WORKSHEETS and PREVIEWS are printed in difficulty (1 [easy], 2 [not so easy], 3 [proficiency] up to 4 [mastery]) order within a skill. The actual difficulty level appears slightly to the left of the DK box of each problem in a very small font. Also, instructional references appear on worksheets but are optional on quizzes.]