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Take Offs and Landings (Addition/Subtraction Game) April 12, 2009

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●Each player needs paper, pencil and two dice.

Take Off is played by pretending you are an airplane trying to reach 100 feet in altitude.  Taking turns, each player rolls his dice and adds them together and writes this number down.  His plane is now at that altitude.  The next player does the same.  The first person to get closest to 100 or reach it exactly, wins.

Landings is the same game, except now your airplane is at 100 feet and is coming in for a landing at ground zero.  Each player rolls his dice and subtracts that from 100.  Play continues until someone comes closest to zero or reaches it exactly.  Any player that goes past 0 will have crashed.

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Number Families (Addition/Subtraction Game) April 11, 2009

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● 4-6 sets of cards numbered 1-12.

Each game starts with declaring a particular number family that will be in play, such as 12 or 7. Dealer shuffles cards and deals them equally to all players. Players may not look at their cards, but must place them face down in a pile in front of them. Players in turn place their top card face up on the table. The first person to spot the face-up cards taht when added or subtracted equal the number family, slaps his face up card and names the cards that belong, such as a 3 card, a 5 card and a 4 card make the number family 12. If he is correct, he wins all the cards in that family and puts them in a separate pile. Game continues until all cards have been played. Player that has the most family cards wins.

Eleven Card Turnover (Addition/Subtraction Game) April 10, 2009

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● two dice
● Each player needs a set of cards numbered 0 to 10.

Place all the cards face up in a row in front of each player.  First player rolls two dice on his turn and may choose to add or subtract the two numbers shown on the dice.  If the answer equals one of the cards face up, the player may turn it over.  The next player does the same.  Play continues until someone gets all 11 cards face down.  This also can be played as a solitaire game.

200 Cards (Addition Game) April 10, 2009

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● Write the numbers 1-200 on 200 cards (can use old business cards, index cards, etc.)

Place containers in a non see-through container like a bowl or shoebox and mix up.  Each player, without looking, draws five cards and holds them in their hand.  Players add their numbers up (can use paper if need to, but best to do it in your head – add the ones, tens and hundreds).  The highest total wins that round.  If the player with the highest total gives the sum wrong, the next highest total wins.

Addition Bingo (Addition/Subtraction Game) April 10, 2009

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●Two dice
●beans or bingo chips
● Bingo cards – make a grid that is four rows by four columns (16 squares total.)  Write the digits 2 through 12 randomly on each of the squares.  There will be four extra squares so you can put in duplicates of any of these numbers.
Leader rolls the two dice.  Whatever the sum of the dice is, players must mark that answer on the card.  First to get four in a row wins the round.

Foolish Math (Addition/Subtraction Game) April 10, 2009

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●Whiteboard, poster or large piece of paper with the following written on it:

0 – open mouth wide

1 – stand on one leg

2 – two hands on knees

3 – two arms and one leg up

4 – down on all fours

5 – fingers in ears

6 – finger on nose

7 – hand on top of head

8  – jump up and down

9  – sit in a chair

10 – lie on the floor

11 – spin around

12 – start singing

13 – stick tongue out

14 – whistle a few notes

15 – start clapping

Players take turns being the leader, who acts out an addition/subtraction problem. For example, to act out 4+ 8, the leader would get down on all fours and then stand up and jump up and down. The first player to perform the correct action that corresponds to the answer is the winner. In this case, 4+8=12, so the winner would have to start singing.

Twenty One (Addition/Subtraction Game) April 9, 2009

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●4 to 6 sets of 0-11 cards.

Shuffle cards and deal one card face-down and one card face-up to each player.   Players may not look at their face-down cards until the end of the play.  The object of the game is to get a total of 21 (but not over 21) in the face-up stack.   The leader asks each player if they want another card face-up on their stack, but the player also needs to take into account that they don’t know what the value of the face-down card is, which will be added to the stack after they tell the leader to stop adding face-up cards.  When everyone has decided to stop, everyone looks at their cards to see who is closest to 21 without going over.  They win all the cards in play.  If there is a tie, each person gets half the cards.    For example, if you have a 2 in your face-up stack, you would probably want to ask for another card in that stack, since the highest you could have face-down would be 11 for a total of 13.  So say you ask for another card and you get a 5.  Then you tell the leader you don’t want any more cards.  When everyone counts their cards, you would add 2 plus 5 plus the face down card which just happened to be an 11, and you’d get 18.

Addition/Subtraction Hopscotch (Addition/Subtraction Game) April 9, 2009

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●Sidewalk chalk

Draw digits in mixed order from 0-9 along a trail on your sidewalk or driveway.  Make them one to two feet apart on the ground.  Players in turn hop on one foot from one digit to another, and as they do so, they add or subtract a certain number to each one they hop on.  For example, a player might add the number 3 to each number he hops on to.  He has to call out the sum/difference while he is standing with one foot on that number.

Variation #1: Make the trails longer with larger numbers.
Variation #2: Jump on the first number, and say it out loud.  Jump to the next number and add that number to the first number and say the sum out loud.  Keep adding as you jump.  For example, jump on a 2 and say “2.”  Then jump on a 6 and say “8.”  Then jump on a 3 and say “11.”  When you mess up it’s the next person’s turn.
Variation #3: To play this inside, use masking tape to tape numbers to the floor.
Variation #4: Let younger kids just jump on the numbers and tell you what they are.

Five Out (Addition Game) April 9, 2009

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●5 dice
●pencil & paper

Each player will take a turn while the rest watch.  Player will roll all 5 dice on his turn.  He will set aside any fives rolled and add up the remaining dice.  He rolls the remaining dice, removes and fives and adds up the rest. He keeps dong this until no dice remain.  The next player then does the same thing, rolling all five dice, removing any fives and adding up the remainder.  At the end of the round, the player with the highest score wins that round.  First one to win 5 rounds is the winner.

Skunk (Addition/Subtraction Game) April 9, 2009

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●Two dice
●paper and pencil for each player.

Each player writes the word “S K U N K” across the top of his paper.  The leader rolls the two dice and whatever the sum is, everyone writes it down under the first “S” in “skunk.”  At this point, each player can choose to continue playing the rest of the letters, or stop and avoid the risk of losing all the points for that round.  If the leader rolls a “skunk” (a one on either of the dice), then those that are playing lose all the points for that round.  As the leader continues to roll the dice, players total up the points and put that total under each succeeding letter.  Continue playing until someone reaches 50 points.

Variation: Subtraction Skunk – each player begins with 50 points.  Instead of adding the die, each player will subtract the smaller from the larger.  Play is the same as addition skunk.  First player to reach 0 is the winner.