“Flip-it: Number frames – Subtraction” is a card game for practicing addition. It includes 54 cards, which have number frames in both sides.
The cards are in order according to their difficulty. The child uses the cards to practice subtraction operations by mentally mentally moving the frames in order to find ways to subtract them faster.
The front side of the cards displays number frames with the - sign between them, while the back side of the cards displays the remaining number frames (difference). The child should see the front side of the card, compare the two number frames and think of ways to solve the equation and then flip the card to see the correct answer.
· 54 double side cards
· Card size: 8.7 Χ 5.6 cm
Example 1
Example 2
Example 3