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+9 +9 +9 +9 +9 +9 +9 +9 +9
9
-9 -9 -9 -9 -9 -9 -9 -9 -9
90
9 x 1= 9 x 10=
9 x 2= 9 x 9=
9 x 3= 9 x 8=
9 x 4= 9 x 7=
9 x 5= 9 x 6=
9 x 6= 9 x 5=
9 x 7= 9 x 4=
9 x 8= 9 x 3=
9 x 9= 9 x 2=
9 x 10= 9 x 1=
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