Peanut Butter and Jelly Time Adding and Subtracting Multiples of Ten Bump Game by Learning Moore in First is an engaging way for students to practice their mental math strategies in math centers or stations. Included are game cards in which students must solve mental math equations such as 79+20= and 95-80=. The rules and supplies for bump are as follows:
Connecting Cubes– 10 of the same color per player
Place board where all players can read the numbers (sums and differences).
Place game cards face down in a pile.
Players take turns drawing a card and mentally solving the multiple of ten addition or subtraction equation. Once they find the sum or difference they should put one of their counters on the answer on the game board.
If a different player draws a card that has the same answer, that player “bumps” the initial player’s connecting cube off the sum or difference and places their cube on it instead.
If a player draws a card that uses the same answer as one they have already claimed with their color of counter, they may stack another counter on top of the first one. This double stack makes them “safe” from being bumped by other players.
When players run out of cards they should shuffle and keep playing, as more ‘bumps” will occur the second time through the cards.
The game ends when the teacher calls time or when a player runs out of counters. The winner is the player with the most counters on the board.