+10 +10 +10 +10 +10 +10 +10 +10 +10 10 -10 -10 -10 -10 -10 -10 -10 -10 -10 100 10 x 1= 10 x 10= 10 x 2= 10 x 9= 10 x 3= 10 x 8= 10 x 4= 10 x 7= 10 x 5= 10 x 6= 10 x 6= 10 x 5= 10 x 7= 10 x 4= 10 x 8= 10 x 3= 10 x 9= 10 x 2= 10 x 10= 10 x 1= -22-