Price: 250 points or $2.5 USD
Subjects: math
Grades: 13,1,2,3
Description: These Montessori addition questions are for practicing independent work in math; specifically static addition. There are 11 static 4-digit addition problems with the control of error (sum/answer) included after every boom card so children really can work and check their work independently. The nature of working with boom decks is it stops the child's reliance on the teacher for the control of error. The numerals are coloured according to the Montessori math hierarchical colors.