Fun With Facts

8/14/2019 Fun With Facts

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CONTIG

Number of players: 2 to 5

Materials: 3 Dice

Board as shown

Counters

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How to Play

1. Each player in turn throws the 3

dice and tries to make up a

number on the board from the 3

numbers on the dice together

with any of the four operations

(+, -, x, ) and parenthesis. e.g.

(7 - 2) x 4 cover 20


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how to play

R If he/she succeeds, the number iscovered with a counter

R If a player is unable to produce a

number which has not alreadybeen covered, the next playerhas a turn

R A player is eliminated whenhe/she is unable to produce acoverable number in 3consecutive rounds.


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ScoringA player scores 1 point for each

covered number contiguous to(i.e. adjacent to, horizontally,vertically or diagonally) the

number he/she covers incompleting his/her turn. 19

27

28

29

35

36

37

20

21

e.g. if 19, 20, 21 and 27

were already covered and aplayer threw 4, 1 and 7 tomake 28 (4 x 1 x 7 (theywould score 3 points.


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The winner is the player with thehighest score at the end.


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123456789172533601001018263464111927356612202836721321372975142230388015233139901640243296108120125144150180216


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100R Players are paired and take turns to

roll two dice

R After each roll digits are arranged tomake a numeral e.g. 54

R Subtract the numeral from 100

R The second number rolled issubtracted from the remaining

difference and so onR If a player cannot subtract he/she

loses a turn.

WHO CAN REACH 0 FIRST?


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Number Trails


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Number Trails

Topic: Addition and Subtraction Facts

Object: Identify sequences of touchingnumbers that can be added

and subtracted to equal a giventarget number

Groups: In pairs

Materials: Hand out ofNumber Trailsactivity sheet


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Directions1. Leader chooses a target number and

writes it in the empty space on theactivity sheet

2. Students take turns identifying a

variety of trails on the activity sheet.The trail may mix addition andsubtraction but must equal the giventarget number

3. Students continue to seek many trails

4. Leader changes the target number.Students play additional rounds.

(Numbers 0-15 work well as targetnumbers.)


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Making Connections

Promote reflectionand makemathematicalconnections by

asking students to:E Find a trail that

uses more than sixnumbers

E Create a trail thatalternates additionand subtraction.

8 + 6 - 1 - 0 = 13


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Challenge

Try to make a trail throughevery number that equals 4

.that equals 8

.that equals 10

.that equals 12.


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Challenge

Make a trail that usesmultiplication and division

Make a trail using fractionsand/or decimals


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Todays Target

Todays target isTry to make todays target in eachof these ways.

3. Adding two numbers

4. Finding the difference of twonumbers

5. Multiplying two numbers


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R Dividing one number by another

R Adding three numbers

R Multiplying three numbers

R Multiplying and Subtracting

R Using a fraction

R Using a decimal

R

Doing something different


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Investigation Three ways

You may only use the digits 1, 3,

6, 5, 8, and once only in eachbox.

Using these, can you find ways ofmaking the numbers from 1 to10? One is done for you


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10

9

87

6

8 - 354

3

21


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R Choose a number to start e.g. 7 andone for home e.g. 40. Choose thenumber of stations you will use.

R Choose the fuel to use. Fuel is addition (+) subtraction ()

multiplication (x) or division ()

Remember that your journey will

take a long time with =+/-0 or x/1.

Each kind of fuel must be used at leastonce


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R Write the fuel alongside your rails

between stationsR Taking turns, work out a new

number for each station (e.g. 7 x 3

= 21)R If an error is made, the train is

derailed and and a new game

begins.


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StartHome21601530407x 3x 363- 3 42+ 10


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Fun With Facts