To find the mystery number, the student must carry out the numerous mathematical operations; the number remaining at the end is the one we have been looking for. Consequently, even after the very first computation, the student knows if he or she is on the right track and won't lose time on an incorrect method. These documents may be quite useful in order to consolidate mathematical methods and learnings. The exercises are also introduced in progressive order of difficulty.
Your choice has been added to the shopping cart.
Do not show
One or more of selected products were already in your cart. They have not been added. You may change the quantity ordered in your shopping cart.