16-7, 16-8, 16-9, 14-7,15-9,13-6,11-8,11-7,11-6 разложить

16-7= ( 10 + 6 ) - ( 3 + 4 ) = 9
16 - 8 = ( 8+8) - ( 4+4 ) = 8
16-9 = ( 7+ 9)- (5+4) = 7
14 - 7 = ( 7+7 ) - ( 4+3 ) = 7 
15 - 9 = ( 8+7 ) - ( 6 + 3) = 6
13 - 6 = ( 10 + 3) - ( 4+2)= 7
11-8 = ( 7+4) - (3+5)=3
11-7 = (6+5)-(2+5)=4
11 - 6 = ( 9+2)- ( 4+2) = 5