10以内加减法100道练习题【A4直接打印】

精选文库10以内加减法训练（1）日期： 计时： 正确题数： 4+1=4-4=5-1=2-0=2+1=2-1=4+0=1+1=5-3=2-2=2+0=3+2=4-1=5-2=3+0=4-2=5-5=5-2=4-2=4-1=3+1=1+3=1-0=1+2=3-1=5-3=2+2=5-4=4-3=2+1=4-1=3-2=3-1=4-3=2-2=3-3=1+0=2+1=5-4=0+0=3-0=1-1=2-2=1+4=5-1=4-4=5-0=3+0=2+3=1+1=2+0=3+2=4-1=5-2=4-1=4-1=3-2=3-1=4-3=5-2=3-3=1+0=2+2=5-4=1-0=3-0=5-1=3-2=1+4=5-4=4-0=5-0=3+0=2+3=3-1=2+0=3+2=4-1=5-2=2+3=4-1=3-2=3-1=4-3=5-1=5+0=3+1=4-2=5-3=3-1=4+1=4-4=5-1=2-0=0+4=2-1=4+0=1+1=5-3=4-1=10以内加减法训练（2）日期： 计时： 正确题数： 2-0=5-2=4+1=5-4=5-5=5-3=4-3=2-2=3-1=1+3=5-2=5-4=5+0=2+1=2+2=4-2=1+4=4-1=2-2=3-2=1+2=2+3=2-1=3+0=1+0=4-3=5-2=2+1=4-1=1-1=4-3=4-3=2-2=3-1=5-0=5-4=5-3=0+0=2+2=3+2=1+4=2-0=5-1=3-2=3-2=2+3=5-3=1+1=5-5=3+1=4-4=2+2=4-1=3-2=4-4=4+0=3-2=5-3=2+2=4+0=3+2=3+0=1-0=2-2=4-1=5-5=4-1=5-4=3-2=5-3=1+3=3-1=3-0=3+0=1-0=2+2=4-2=2+3=4-1=5-5=3-2=5-1=5-1=3-1=1+3=1+0=1+1=3-3=4-2=2+2=1-1=2+2=0+4=5-1=3-3=5-5=5-2=4-1=1+1=1+4=10以内加减法训练（3）日期： 计时： 正确题数： 26 97 3234 54 35 7193= 83= 54= 82 08 31 6173 102 72 64 92 109 55 52 94 81 21 46= 27 95 33 42 104 12 53 08 107 24 65 44 51 19 84 60 33 15105 11 81 41 93 3626 97 32 34 5435 71 9383 54 82 08 3161 73 102 72 64 92 109 55 52 94 81 21 46 27 95 33 42 104 12 53 08 10724 65 445119 84 60 33 15105 102 72 64 92 10910以内加减法训练（4）日期： 计时： 正确题数： 92 083464 73 35 72 93= 82=50=83 74 64 9210955 55 95 81 41 46= 27 953342 104 62 63 08 10724 65 46541984 403316 10511 81 6196 3626 94 3264 5435 7193 835483 0433 61 73102 72 6393 10955 5294 81 2145 2495 53 42104= 12=53= 08= 107=54 64 44 54 1984 6033 45 10453 81 41 93 3636 9432 345410以内加减法训练（5）日期： 计时： 正确题数： 5 - 1 =0 + 7 =8 + 2 =2 + 4 =0 + 6 =0 + 2 =0 + 1 =7 - 6 =0 + 2 =4 + 5 =6 + 8 =7 - 6 =2 + 6 =0 + 3 =9 - 8 =9 - 5 =0 + 1 =1 + 9 =5 - 2 =7 - 5 =7 - 2 =9 - 1 =8 + 1 =7 - 3 =2 + 7 =6 + 1 =4 + 5 =0 + 9 =2 + 6 =2 + 7 =9 - 1 =0 + 5 =6 + 4 =8 + 2 =3 + 7 =6 + 3 =9 - 2 =7 - 7 =4 + 7 =2 - 1 =4 + 6 =6 + 3 =0 + 7 =3 - 3 =0 + 8 =7 - 5 =2 + 7=9 - 3 =2 + 7 =9 - 9 =2 + 9 =8 - 1 =5 - 3 =4 + 7 =9 - 1 =3 - 1 =4 + 1 =8 + 2 =9 - 5 =7 - 7 =7 - 3 =5 - 3 =7 - 4 =8 + 4 =8 - 5 =2 + 3 =7 - 3 =9 - 5 =9 - 1 =7 - 5 =2 + 3 =0 + 9 =10 - 7 =4 + 4 =4 + 3 =8 - 7 =7 - 1 =8 - 3 =6 + 4 =3 - 1 =0 + 6 =9 - 8 =8 - 5 =0 + 5 =9 - 3 =4 + 5 =3 + 5 =5 - 2 =10 - 6 =3 + 5 =2 - 1 =4 + 4 =7 - 3 =8 + 7 =0 + 8 =0 + 4 =6 + 0 =9 - 7 =6 - 1 =3 - 2 =10以内加减法训练（6）日期： 计时： 正确题数： 6 + 4 =6 + 1 =4 + 2 =5 - 5 =1 + 9 =2 + 7 =5 - 1 =9 - 9 =10- 9 =4 - 1 =7 - 4 =6 - 5 =7 + 3 =0 + 3 =6 + 4 =4 - 1 =8 - 3 =9 - 2 =6 - 3 =7 - 1 =5 - 4 =0 + 4 =2 + 8 =9 - 6 =7 - 1 =7 - 6 =8 - 7 =9 - 1 =2 + 2 =2 + 6 =10- 8 =1 - 1 =4 + 6 =6 + 3 =4 + 3 =9 - 2 =0 + 2 =7 - 3 =7 - 4 =3 - 2 =9 - 3 =9 - 9 =6 + 3 =3 - 1 =2 + 7 =8 + 1 =2 + 4 =0 + 6 =8 + 0 =5 - 1 =7 - 6 =0 + 2 =4 + 5 =9 - 7 =6 + 1 =2 + 6 =0 + 3 =9 - 8 =0 + 6 =2 + 1 =4 + 0 =5 - 2 =7 - 5 =8 + 1 =5 - 1 =8 + 1 =7 - 3 =2 + 7 =0 + 3 =4 + 2 =0 + 9 =2 + 6 =2 + 7 =2 + 4 =4 - 3 =6 + 4 =8 + 2 =8 + 1 =8 - 1 =2 + 5 =7 - 7 =4 + 6 =2 - 1 =7 - 1 =6 - 5 =0 + 7 =3 - 3 =0 + 8 =8 + 2 =4 - 3 =9 - 3 =2 + 7 =9 - 9 =0 + 7 =7 - 5 =5 - 3 =4 + 5 =9 - 1 =3 - 3 =5 + 5 =10以内加减法训练（7）日期： 计时： 正确题数： 8 + 2 =10 - 5 =7 - 7 =2 + 2 =2 - 1 =7 - 4 =5 + 4 =8 - 5 =9 - 5 =6 - 5 =9 - 5 =9 - 1 =7 - 5 =6 + 2 =4 + 6 =9 - 7 =4 + 4 =4 + 8 =5 + 1 =4 + 3 =8 - 3 =6 + 4 =3 - 1 =3 - 1 =6 + 3 =8 - 5 =0 + 5 =9 - 3 =0 + 9 =9 - 3 =5 - 2 =9 - 6 =6 + 5 =8 + 2 =9 - 7 =7 - 3 =8 + 7 =0 + 8 =5 - 4 =4 + 4 =9 - 7 =6 - 1 =3 - 2 =1 - 1 =7 - 2 =4 + 2 =5 - 5 =6 +0 =5 - 2 =8 + 1 =9 - 9 =5 - 5 =4 - 1 =7 - 5 =5 - 3 =7 + 3 =0 + 3 =1 + 9 =4 + 5 =4 + 5 =9 - 2 =6 - 3 =7 - 1 =9 - 4 =10 - 1 =2 + 8 =9 - 6 =7 - 1 =2 + 8 =2 + 1 =9 - 1 =2 + 2 =8 + 1 =4 + 6=0 + 6 =4 + 5 =6 + 3 =4 + 3 =0 + 4 =9 - 5 =7 - 3 =7 - 4 =3 - 2 =7 + 2 =5 - 5 =5 + 3 =3 - 1 =8 + 2 =4 + 6 =5 - 1 =0 + 6 =8 + 2 =5 - 1 =5 - 3 =0 + 2 =4 + 5 =9 - 7 =6 + 1 =9 - 5 =6 +3 =10以内加减法训练（8）日期： 计时： 正确题数： 2 - 1 =7 - 1 =6 - 5 =1 - 1 =4 + 6 =0 + 8 =8 + 2 =4 - 3 =7 - 7 =7 - 5 =9 - 9 =0 + 7 =7 - 5 =0 + 8 =2 + 9 =9 - 6 =10- 3 =6 + 5 =8 - 5 =3 - 1 =7 - 7 =2 + 2 =2 - 1 =6 + 1 =7 - 3 =8 - 5 =9 - 5 =6 - 5 =6 + 5 =2 + 3 =7 - 5 =6 + 2 =4 + 6 =9 - 4 =2 + 3 =4 + 5 =0 + 8 =4 + 3 =5 - 1 =8 - 7 =3 - 1 =3 - 1 =6 + 6 =8 + 2 =0 + 6 =9 - 3 =1 + 9 =9 - 3 =6 + 1 =4 + 3 =5 + 5 =3 + 5 =9 - 7 =8 + 1 =2 - 1 =0 + 8 =5 - 4 =4 + 4 =0 + 1 =0 + 4 =3 - 2 =1 - 1 =7 - 2 =6 + 3 =6 + 4 =6 + 3 =5 - 2 =8 + 1 =6 + 2 =6 + 3 =4 - 1 =7 - 5 =5 - 3 =9 - 3 =7 - 4 =6 + 2 =4 + 5 =4 + 5 =9 - 7 =4 - 1 =4 + 6 =9 - 3 =2 + 7 =2 + 7 =2 + 2 =5 - 3 =7 - 3 =4 + 5 =7 - 7 =3 - 2 =9 - 6 =4 + 2 =0 + 5 =6 + 2 =10- 2 =9 - 8 =5 - 1 =5 - 2 =4 +1 =8 - 5 =10以内加减法训练（9）日期： 计时： 正确题数： 4 + 1 =8 + 1 =6 + 2 =4 + 5 =7 - 1 =3 - 3 =0 + 6 =9 - 5 =0 + 2 =2 + 6 =2 + 4 =3 - 2 =8 + 2 =9 - 5 =5 - 4 =6 - 1 =8 - 5 =0 + 5 =6 - 1 =0 + 9 =0 + 7 =2 + 8 =4 + 5 =7 - 3 =9 - 4 =2 + 5 =0 + 4 =2 + 5 =8 + 3 =8 + 2 =4 + 5 =4 + 3 =7 - 4 =8 + 1 =8 +1 =4 - 3 =0 + 3 =6 + 2 =7 - 3 =2 - 1 =2 + 3 =6 +2 =8 + 2 =6 + 4 =8 - 3 =0 + 9 =6 + 3 =6 - 5 =6 + 3 =4 - 1 =0 + 5 =0 + 4 =4 + 2 =8 +0 =7 - 3 =6 + 2 =9 - 8 =9 - 3 =5 - 1 =3 - 3 =2 +5 =9 - 2 =4 + 1 =6 - 5 =6 - 3 =2 - 1 =2 + 2 =6 + 0 =9 - 7 =9 - 3 =0 + 6 =3 - 1 =8 - 1 =0 + 2 =5 - 1 =4 + 4 =9 - 9 =0 + 8 =4 - 3 =2 + 8 =2 + 2 =9 - 3 =6 + 3 =7 - 1 =5 - 5 =4 + 5 =9 - 6 =7 - 1 =0 + 6 =4 + 1 =4 + 2 =5 - 3 =4 + 6 =6 + 3 =0 + 1 =6 + 3 =7 - 5 =6 + 1 =2 + 3 =5 - 3 =10以内加减法训练（10）日期： 计时： 正确题数： 0 + 8 =0 + 7 =8 - 3 =8 - 1 =2 + 4 =7 - 1 =3 + 7 =3 - 2 =4 + 3=3 - 1 =2 + 6 =0 + 1 =0 + 1 =5 - 4 =9 - 4 =9 - 3 =2 + 7 =2 + 7 =2 + 2 =1 - 1 =7 - 3 =2 + 5 =7 - 7 =3 - 2 =4 - 3 =4 + 2 =0 + 5 =6 + 2 =9 - 2 =5 - 5 =5 - 1 =5 - 2 =4 + 5 =8 - 5 =6 - 1 =5 - 5 =10 - 3 =8 +0 =4 + 3 =0 + 2 =8 + 1 =6 + 2 =4 + 3 =7 - 1 =9 - 1 =0 + 6 =9 - 5 =0 + 2 =2 + 6 =5 - 3 =3 - 2 =8 + 2 =9 - 5 =5 - 4 =4 + 2 =8 - 5 =0 + 5 =6 - 1 =0 + 9 =3 - 1 =2 + 8 =4 +3 =10 - 3 =9 - 4 =2 + 4 =0 + 4 =6 + 3 =6 + 3 =8 + 1 =6 + 1 =4 + 3 =7 - 4 =8 + 1 =8 + 2 =7 - 1 =0 + 3 =2 + 8 =7 - 3 =2 - 1 =6 + 4 =6 + 3 =0 + 9 =6 + 4 =8 - 3 =3 - 3 =7 + 3 =10 - 5 =6 +1 =4 - 1 =6 + 3 =5 - 1 =4- 3 =9 - 3 =2 + 7 =0 + 4 =6 + 1 =9 - 5 =5 - 3 =4 + 7 =5 + 4 =10以内加减法训练（11）日期： 计时： 正确题数： 10-7=10-3=9+1=5-1=5-2=7+1=7-5=8-2=10-6=10-6= 2+8=5+3=3+6=7-4=4-1= 7-1=6+2=9+1=5-3=1+5= 10-1=9-2=1+2=6+2=7-3= 5+5= 6+1=1+9= 7-2= 2+3= 10-1= 5-3=3+1= 3+7=4-3= 9-6= 2+4= 5+1= 2+2= 1+9= 7-4= 1+4= 5+2= 9-5=8-2=6+3= 5-2= 4-3= 1+1= 6-3= 9-3= 8-1= 8+2= 4+2= 10-6= 5-2= 1+4= 6-4= 2+8= 2+5= 8-1= 9-4= 7+1= 7-5=3+3=10-3= 7+2= 9-8= 2+1= 5+3= 6+3= 1+8= 2+4= 10-9= 5+2= 8-3= 3+1= 1+4= 6-1= 10-6=9+1= 2+6=4+1= 3+4= 2+2= 2+2= 2+7=1+2= 4+3= 6-2=3+7= 3+5=8-4= 8-6= 4+5= 4-1= 5-4=6-1= 9-2= 1+1= 10以内加减法训练（12）日期： 计时： 正确题数： 4+3= 3+5= 3+7= 7-6= 1+1= 8+2= 5+5=7-2=8-4= 3+6= 9-3=3+2=6-3= 7-6= 2+8=4+6= 3+5= 1+5= 8-4=3+4= 4+5= 5-1= 2+2= 2+3= 8-4= 1+9= 1+9=8-7= 1+3= 1+6= 8-2=10-1=10-5= 2+2= 1+2=4-3= 5-3=8+2= 5+3=4+5= 6-4=2+8= 10-5=4-3= 9-1=1+8= 6-3= 7+1= 1+4=7-2= 4+1= 3-1= 9+1=2+6= 3+5=4+1= 3+4= 9-8=9-5= 5-1= 5+3= 5-2=10-6= 10-6=4-1= 10-6= 1+5= 4-3= 8-2= 2+2=5+3= 1+9= 6-3= 7-3=5+2= 2+5= 3+3= 2+2=2+7= 1+2= 4+3= 3+7=3+5= 8-4= 8-6= 4-1=5-4= 6-1= 9-2= 4+3=6-2= 4+5= 3+5= 3+7=1+1= 7-6= 2+3= 1+1=8+2= 5+5= 10以内加减法训练（13）日期： 计时： 正确题数： 7-2= 8-4=3+6= 9-3= 3+2= 6-3=7-6= 2+8= 4+6= 3+5=1+5= 8-4=3+4= 5-1=5+4= 8-4=1+7= 5+2=8-1= 7+2=5-4= 4+1=5-3= 5-2= 5+5= 6+1=10-2= 4-1= 4+6= 10-3= 3+6= 7-4= 10-2= 7+2=10-3= 6-3= 7-6= 3+1=3+5= 9-4= 4-1= 1+2=1+8= 1+3= 8+2= 9+1=2+8= 3+1= 7-4= 10-8= 1+1= 2+3= 3+2= 10-2= 2+2= 5+3= 3+6= 2+3=10-5= 1+9= 4+2= 8-4=1+8= 10-6=5+3= 6-4=2+3= 4-2= 8-5= 3-1=2+4= 9+1= 9-7= 1+1=5+3= 3+7= 4+6= 6-5=3+1= 1+6= 9-2= 1+8=3-2= 9-5= 2+5= 4-3=9-1= 4+4= 1+4= 4+4=5-4= 1+3= 6-4= 4+2=4-3= 8-6= 9-4= 7-2= 5+5= 10-6=10以内加减法训练（14）日期： 计时： 正确题数： 6-4= 2-1= 7+3= 1+6= 2+3= 5+3= 1+6= 5-4= 2+7= 6+3= 6-2= 3+2=10-8= 1+5= 2+5= 3+4= 9-5= 7-5= 9-5= 5-3= 8-2= 7-3= 1+6= 8-6= 7-6= 10-6= 10-8= 10-9=5+1= 10-2= 5+3= 3+2= 3-2= 6+4=10-2= 3+2= 5+4= 8-6=7-1= 5+4= 8-7= 7+1=6-1= 10-5=6-5= 9-8=5-3= 2+8= 7-5= 6-2=5+1= 4-3= 5+3= 2+4=3-2= 9-5= 8-5= 4+5=5-1= 2+2= 2+3= 8-4=1+9= 1+9= 8-7= 1+3=1+6= 8-2=10-1= 10-7= 10-3= 9+1= 5-1= 7+1=7-5= 8-2=10-6= 2+8=5+3= 3+6= 7-4= 7-1=6+2= 9+1= 5-3= 10-1= 9-2= 1+2=6+2= 5+5=6+1= 1+9= 7-2= 10-1= 5-3= 3+1= 3+7= 5-2=10-6= 10-6=10以内加减法训练（15）日期： 计时： 正确题数： 4-1= 10-6= 1+5= 4-3= 8-2= 2+2=5+3= 1+9= 6-3= 7-3=5+2= 2+5= 3+3= 2+2=2+7= 1+2= 4+3= 3+7=3+5= 8-4= 8-6= 4-1=5-4= 6-1= 9-2= 4+3=6-2= 4+5= 10-6= 3+4= 9-6= 9-3= 5-1= 4+2= 10-5= 6+2= 8-5= 2+2= 4+1= 5-2= 4-2= 6-5= 3-1= 2-1= 6-3= 2+4= 8-6= 4+2= 2+6= 6+2= 2-1= 2+6= 10-5= 8-1= 6-1= 4+1= 10-2= 8-6= 10-7= 4+3= 6-3= 3-2= 2+1= 8-3= 10-1= 8-6= 1+3= 10-7= 1+3= 3+1= 6+2= 8-5= 2+7= 1+8= 3-1= 8+1= 6+4= 8-3= 2+3= 1+2= 7-3= 9-4= 3+2= 3+2= 4+1= 10-4= 3+6= 8+2= 7-4= 5-3= 7-4= 6-3= 6-1= 1+7= 8-2= 4-1= 9-7= 6+3= 9-5= 9-8= 10以内加减法训练（16）日期： 计时： 正确题数： 6-3= 6-2= 3+6= 7+1= 2+7= 9-5= 2-1= 5+2= 10-4= 4+4= 9-1= 8-7= 3+3= 6+3= 6+3= 9-4= 7-4= 10-2= 7-2= 2+1= 1+3= 1+8= 10-2= 4+5= 8-3= 5-2= 9-6= 3-2= 2+5= 7-3= 8-1= 3-2=6+2=6+3= 1+6= 1+3= 2+5= 10-4= 2+4= 9-7= 4-2= 2+6= 4-2= 3+1= 1+9= 6-1= 3+6= 5+3=7-3= 5+5= 6+4= 5-3= 8+2= 7-3= 3+6= 8+2= 2+7= 10-8= 9-4= 8-6= 10-7= 2-1= 6+3= 5-2= 5-2= 8+2= 4-1= 9+1= 4-3= 2+1= 8-1= 9-7=5+2= 1+3= 4-3= 9-8= 2+3= 6+2= 3+2= 8+2= 9-8= 4-3= 4+2= 5+2= 6-2= 6-3= 6-5= 7-1=4-2= 5+3= 1+1= 7+1= 1+9= 9+1= 5-4= 9-5=4-1=5-3=1-1=2+2= 10以内加减法训练（17）日期： 计时： 正确题数： 1+2= 10-3= 5+2= 4+5= 1+3= 6-5= 10-9= 1+4= 7-6= 1+2= 2+8= 1+9= 1+6= 9-6= 8-1= 3+5= 1+2= 4+5= 4+5=1+4= 6+1= 7+2= 2+4= 10-1= 7-4=8-6= 5-1= 2+6=6+4= 8+2= 10-2= 3+7= 6+3= 8-3= 5-2= 2+6=9-2= 10-6= 3-2= 2+1= 5-3= 2+4= 2+8= 4-2= 6+2= 2+2= 8-5= 10-2= 1+2= 2+8= 8-4= 1+1=2+3= 3+2=2+6= 9-6= 6+2= 9-1= 1+2= 2-1= 3+2= 2-1= 6-3= 1+7= 8-4= 7+3= 6+3= 2+7= 6-3= 8-3= 8+1= 6+2= 7-6= 9-5= 7+3= 1+8=8-6= 3-2= 10-5= 6-1= 8+2= 9-3= 6-1= 4-3= 8-2= 7+2= 10-3= 3-2= 5+5= 6+1=1+8= 7+1=6+3= 10-5= 6+2= 5+2= 7-5= 4+3= 10-3= 3+4=10以内加减法训练（18）日期： 计时： 正确题数： 1+4= 5-2= 4+1= 6-5= 7-4= 2+2= 9-8= 4+4=5-1= 5-2= 8-5= 1+5= 7+3= 2+5= 3+6= 10-4=8+2= 6-4= 7-1= 2+8= 7-6= 9-3= 3+2= 5+4= 5+5= 2+5= 9-1= 6-5= 6-1= 1+6= 1+9= 9-8=10-4= 3-2= 10-5= 4-1= 4-2= 3+4= 1+6= 10-3= 8-7= 10-4= 1+7= 8+2= 5-2= 6+2= 10-1= 6-1=2+8= 2+4= 6+3= 3+7= 6-5= 7-3= 9-5= 4+4=3+6= 7-1= 8-5= 2-1= 4+4= 9-3= 3-2= 9-2=10-3= 6-5= 10-8= 8+2= 9-1= 7+3= 1+8= 10-3=8-2=6+4=4+4= 8-1= 9-6= 5+5= 6-1= 10-1= 5+1= 5-2= 9-4= 3-2= 6-2= 10-1= 1+2= 4+3=8-2= 7-3= 10-4= 8-6= 5+3= 4+3= 6+2= 1+5= 1+6= 4+5= 3+3= 6-5= 10以内加减法训练（19）日期： 计时： 正确题数： 7+2= 5+5= 7-3= 6+2= 7-1= 1+3= 4-1= 9-1= 4+6= 5+1= 10-1= 10-4= 10-8= 9-5= 7+3= 9+1= 2+6= 3+5= 8-1= 4+6= 2+8= 8-6= 9+1= 5+1= 1+3= 5-3= 3+3= 5+2= 7-3= 10-4= 5-1= 10-9= 6-2= 0-3= 9-3= 4+6= 6+2= 3-2= 7-2= 3+2= 9-7= 5-2= 3+2= 6+1= 6-5= 8-4= 9-2= 4+1= 7-4= 8-2= 10-6= 7-5=2+4= 7-6= 9-1= 6-1= 8+1= 6-3= 10-6= 5+2= 9-6= 7-5= 5+4= 3-1= 5+3= 9-7= 9-3= 8-6= 3+2= 1+4= 4-3= 9-4= 9+1= 6+4= 6+2= 5-4=7+2= 6+2= 5-2= 9-8= 10-1= 1+3= 4+5= 5+2= 5+5= 7-6= 8-5= 6+4= 2+6= 5-2= 9-7= 3+2= 6+3= 10-4= 4+4= 2+2= 4+1= 1+2= 9-6= 9-5= 10以内加减法训练（20）日期： 计时： 正确题数： 3+3= 5-2= 2+1= 5+5= 2+8= 9-8= 4+2= 10-4= 9-6= 8-2= 6-5= 2+7= 2+7= 4-3= 2+6= 7+2= 6-4= 5+3= 9-6= 9-1= 2+6= 2+1= 8