Page 64 - 01-Yr5_Front cover-ccp.indd

Handshakes

At a party, each guest shakes hands with everyone else.
If there are 2 guests, there will be one handshake.

A-------- B --.. AB
AB means 'A and B shake hands'.

If there are 3 guests, there will be three handshakes.
~

AB
AC
BC
A c

B
ITJ Copy and complete this AB
A c ., AC
handshake diagram
AD
for 4 people.

[3J Draw diagrams to show the number of handshakes for:

a 5 people b 6 people.

@] • Without drawing diagrams, how many handshakes for:

a 7 people b 10 people c 11 people?
• How do you know?

[I] • How many handshakes will each person make if there are:

a 5 people b 9 people c 32 people?

• Copy and continue this table
Nl.U'Vlbv aj- p~ 2 3
'
for up to 12 people.
N [.U'\l\A7U a:J kA_Ms~ 0
You don't shake hands with yoursel f! ma,;:ve_ ~ .uckt p.v'SOVV
T IT't<.(),, Vut.A~~ 0
~ ~
Now try RM 29. - - ~
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I STEPS 5:14 I