Online registration is closed for this event. If available, tickets on the day of the event may incur an additional charge.

MathPlay colorful word

MathPlay Mini:
Back and Forth Addition

Online class for 4- and 5-year-olds
Monday, June 15 at 3:00 pm EDT (New York)


In this class, children will discover they can change the order of two numbers they are adding together and the sum will remain the same.  For example: 5 + 3 = 8 and 3 + 5 = 8.  The children will be able to find missing numbers to solve equations that apply to the principle of "back and forth" addition also know as the Commutative Property of Addition.

Materials needed: activity sheet to be provided (to print prior to session) and one marker or crayon.

This is the registration page for an online class for 4- and 5-year-olds.
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June 15th, 2020 from  3:00 pm to  3:30 pm
MoMath Online
United States
Event Fee(s)
Registration fee $65.00
Registration plus $65 donation to support families in need $130.00
Fee waived (for families with financial need; max 1 session per family) $0.00
Free for MoMath Members $0.00