78-70+36= 46-(17-8)= 7+(24-6)= 58-(20+30)=

姓名:________ 得分:__________ 时间：____ 分____秒

51-1= 33+7= 13+3= 89+8= 77-5= 74+7= 93-6= 16+2= 55+3= 49-5= 68+7= 22+2= 11+2= 49-2= 59+6= 12+6= 57-2= 61-7= 47-4= 76+9= 19-7= 22-7= 54-2= 16-3= 38+1= 46+3= 38-3= 58+6= 41-2= 89-1= 88+0= 55+5= 95-26= 68-44= 84+1= 87-72=

57+19= 71-17= 3+67= 64-32= 21-8= 99-4= 78-5= 14-4= 40-7= 97-9= 62+8= 66-0= 50-19= 74-68= 58+16= 34-13=

18+56= 27+70= 53-4= 65-23=

79-32= 24+49= 23-10= 48+7=

20+26= 45-43= 21+35= 58-8=

53+22= 63+10= 65-21= 44-28=

52+2-7= 53-(44+6)= 47+(10-8)= 53-50+47=

29-20+9= 20+(55-20)= 4+66+30= 54+8-30=

68-(38-30)= 9+28+20= 50-3+50= 60-(30+20)=