文档介绍:-
. z.
〔1〕611-31=〔2〕890-870=〔3〕516-191=
〔4〕808-38= 〔5〕967-702= 〔6〕316-210= (32〕120- 40= 〔33〕166 - 120 =
〔34〕727 + 517 = 〔35〕33× 2 = 〔36〕332 - 246 =
〔37〕25+32 = 〔38〕73 + 26=〔39〕 150 + 144 =
〔40〕2 ×14= 〔41〕1400- 800= 〔42〕320×3 =
〔43〕179 -79 = 〔44〕792 + 192 =〔45〕544 - 492 =
-
. z.
〔46〕4× 70 = 〔47〕65 +35= 〔48〕4 × 120=
〔49〕55-37=〔50〕38-19=
28×32= 54×25 = 48×61= 39×42 =
38+25×31 48+52×21 87+35×49
〔1〕25×4 = 〔2〕30 + 700 = 〔3〕73-30 =
〔4〕1400+1400= 〔5〕48÷ 4= 〔6〕33+〔〕=100
〔7〕40÷ ( ) =20 〔8〕3×( )=3000 〔9〕60÷6 =
〔10〕2×20+2= 〔11〕80×2×0= 〔12〕52 ÷ 4 =
〔13〕30×3+ 4= 〔14〕80÷5÷4 = 〔15〕68-19=
〔16〕179 -79 = 〔17〕72 ÷9= 〔18〕98+17-36=
〔19〕30+15+30+15= 〔20〕84-17-43= 〔21〕100×3×3=
〔22〕20×4 ÷4= 〔23〕11×2×5= 〔24〕6×8=
〔25〕46÷2 =
168÷8= 370÷5= 640÷7= 19×64=
99+46×97 44+81×33 31+98×76
〔26〕700+ 500 = 〔27〕3×101 =
〔28〕4 ×12 = 〔29〕700 +900= 〔30〕9 ×300=
〔31〕1400 -800 = 〔32〕36 ÷3 = 〔33〕1300-600=
〔34〕6 ×40 = 〔35〕1200 -500 = 〔36〕130× 3=
〔37〕39+43 = 〔38〕49-26= 〔39〕93÷ 3 =
〔40〕90-34= 〔41〕2×210= 〔42〕86÷2 =
〔43〕37 + 36= 〔44〕90-43= 〔45〕800×8=
〔46〕1200-400= 〔47〕120- 40= 〔48〕33× 2 =
〔49〕29+32 = 〔50〕39+ 26=
470÷9= 522÷6= 312÷7= 570÷8=
38+53×47 67+81×90 99+54×56
〔1〕1400- 800=