Writing Erase - Subtraction Set
Writing Erase - Subtraction is addressed to children starting to learn mathematics. The set includes 68 subtraction problems. The unknown may be one of the 3 numbers involved in the operation. The operations are carried out on numbers from 1 to 20. The unknowns in the task are written in with an erasable marker, which allows the cards to be used multiple times. The toy is a great incentive for mental counting and independent searching for solutions, developing natural skills. Each entered result can be verified against the solution given on the back of the card. The handy size of the packaging allows you to take the toy with you literally everywhere.