1. Integer Cootie Catcher
5 + -6= -1
-3+6= +3
Find the difference. Keep the sign of the number that is further from zero.
Answer is negative. -3x2=-6
Answer is negative. 9/ -3 = -3
Answer is positive. -3 x -3=9
Answer is positive.
-9/-3=3
= -6
Neg.+Neg.= Neg.
Pos. + Pos.= Pos.
Add +
Divide ÷ X
Multiply --
subtract S
Same rules --
subtract
Same Rules
Ex 3: -6-8= = -14
Ex 1: 8-6= 8+ -6=2
Ex 2: 6-8= 6+ -8= -2
-6+(-(-8)=
= 2
Ex 4: -6-(-8)=
Two neg. signs make one pos. sign. +
Add
Anything minus a negative—change to plus a positive.
Pos. or neg. minus a positive—put a plus sign in front of minus sign and change it to adding a negative number. Follow adding rules.
Same
Different
Different
Same ÷
Divide
Same
Different
Print and cut round outside of cootie catcher
Fold in half and in half again
Open out, turn over so top is blank and fold each corner into the middle
Turn over and repeat
Turn over so you can see the pictures
Slide your thumb and your finger behind 2 of the pictures and press together so they bend round and touch
Turn over and repeat with the thumb and finger of the other hand for the other two pictures
All the pictures should now be at the front with centres touching and you are ready to use your cootie catcher!