共10个练习,EXCEL表格
63-( )+10=68 25+( )+26=81 18+43-( )=13 92-( )-47=11 92-(35+36)=
95-(99-47)= 63+(83-42)= 46+29-( )=22 84-( )-50=13 13+( )+18=94
97-( )+14=69 11+( )+26=86 13+58-( )=24 94-( )-48=13 80-(28+18)=
82-(97-36)= 37+(95-37)= 48+21-( )=24 93-( )-29=15 37+( )+40=92
81-( )+28=60 20+( )+20=99 11+53-( )=20 89-( )-46=18 88-(32+38)=
82-(57-49)= 18+(75-11)= 10+36-( )=27 91-( )-40=10 19+( )+27=88
65-( )+13=69 29+( )+17=94 33+37-( )=10 73-( )-31=10 80-(14+40)=
91-(67-42)= 43+(53-13)= 14+52-( )=27 76-( )-20=16 37+( )+29=99
69-( )+16=70 15+( )+13=99 48+27-( )=20 90-( )-49=13 80-(10+29)=
85-(85-39)= 63+(53-16)= 50+29-( )=14 73-( )-32=13 18+( )+28=92