+10 +10 +10 +10 +10 +10 +10 +10 +10 10 -10 -10 -10 -10 -10 -10 -10 -10 -10 100 1 x 10= 10 x 10= 2 x 10= 9 x 10= 3 x 10= 8 x 10= 4 x 10= 7 x 10= 5 x 10= 6 x 10= 6 x 10= 5 x 10= 7 x 10= 4 x 10= 8 x 10= 3 x 10= 9 x 10= 2 x 10= 10 x 10= 1 x 10= -23-