1、 42 1 2 9+ =10 3+ =9 5+ =8 3 6 4 8 5 5 10 6 7 8 6 8 = 10 8 6 6 8 6+1 4-4 0 5+4 10 10-3 8 7-3 2+3 6+3 7+3 9 9 6 9 7 10 8 6+ =10 2 8+ =8 6 3 2 8 10 5 = = = = 10 4+2= 9-3= 4+5= 6-3= 7+0= 4-4= 6+4= 7-6= 10-5= 2+8= 7+3= 4+4= 3+5= 0+9= 10-8= 8-4= 7-2= 5+5= 10-2= 6-1= 5 4 8 4 10 7 3 2 7 2 8 8 4 5 5 1 9 6 3
2、 1 1 1 2 3 4 5 - 22 1 + = - = + = + = - = - = 2 = = 3 = 10 5 3 4 9 4 4 = = = = 5 3 5 3 90 5 30 1 o) 4 7 5 8 6 9 oooo oo oooo oooo oo oooo oooooooooo oooooooooo oooo oo oooo oooo oooooo 2 4 6 3 4 5 3 多 2 6 5 3 2 10 7 4 6 2 8 1 5 2 9 7 0 5 9 4 5 1 3 4 6 2 8 7 8 3 4 1 5 15 9 2 1 6 10 7 3 4 5 4 10 0 10
3、5 4 1 3 6 9 9 8 8 7 9 1 4 5 3 6 9 8 2 8 7 7 4 5 2 7 ( ) ( ) ( ) ( ) ( ) ( ) 13 1 6 2 10 4 3 5 3 5 7 9 4 4 3 6 0 3 6 7 10 30 1 10 2 3 4 3 2 5 5 7 7 9 5 18 4+7= 15 5= 10+3= 12 6= 11 3= 16 8= 12 9= 15 7= 5+8= 7+6= 3+9= 0+11= 14 6+7= 11 2+7= 8+5 7= 5+7+4= 6+3+9= 13 7 6= 46 1 4 2 1 9 1 2 13 3 16 4 3 5 8 11 7 20 19 13 7 4 _ _ _ _ _ _ _ _ 5 13 3 6 7 +4 8 9 ” “ = 6+8 8+6 16-5 10 5+9 15 7 6+3 6-6 1 5+2 10-3 8 6 7 9 15 , _ _ _ _ _ _ 9 8 2 1 3 2 3 1 2 12 1 1 2 3 4 5 2 12 1 9-6+12= 13+5-8= 20-10-4= 9-7+5= 4-4+8= 9+7-6= 2 -3=4 +5=11 6+ =10 2+ =12 14- =7 6+7=9+ 30 2 10 = = 3 4 8
