This file contains 217 pages - title, instructions and 215 pages of flashcards.
The task is to calculate the unknown number in a number sentence. Each completed number sentence involves two numbers which add up to no more than 100.
This set includes additions from 0 + 0 to 100 + 0 as well as their reverse (ie 2 + 17 as well as 17 + 2) up to a total of 100.
These cards could be printed on photo paper or card stock and laminated if desired for long-lasting durability.
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Slovenia License