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〔1611-31= 〔2890-870= 〔3516-191=
〔4808-38= 〔5967-702= 〔6316+ 691 = 〔29300 - 288 = 〔30947 - 236 =
〔311200－400= <32120－ 40= 〔33166 - 120 =
〔34727 + 517 = 〔3533× 2 = 〔36332 - 246 =
〔3725＋32 = 〔3873 ＋ 26= 〔39 150 + 144 =
〔402 ×14= 〔411400－ 800= 〔42320×3 =
〔43179 －79 = 〔44792 + 192 = 〔45544 - 492 =
〔464× 70 = 〔4765 ＋35= 〔484 × 120=
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〔4955-37= 〔5038－19=
28×32＝ 54×25 ＝ 48×61＝ 39×42 ＝
38+25×31 48+52×21 87+35×49
〔125×4 = 〔230 ＋ 700 = 〔373－30 =
〔41400＋1400= 〔548÷ 4= 〔633＋〔 =100
〔740÷ < > =20 〔83×< >=3000 〔960÷6 =
〔102×20＋2= 〔1180×2×0= 〔1252 ÷ 4 =
〔1330×3＋ 4= 〔1480÷5÷4 = 〔1568－19=
〔16179 －79 = 〔1772 ÷9= 〔1898＋17-36=
〔1930＋15＋30＋15= 〔2084－17－43= 〔21100×3×3=
〔2220×4 ÷4= 〔2311×2×5= 〔246×8=
〔2546÷2 =
168÷8= 370÷5= 640÷7= 19×64=
99+46×97 44+81×33 31+98×76
〔26700＋ 500 = 〔273×101 =
〔284 ×12 = 〔29700 ＋900= 〔309 ×300=
〔311400 －800 = 〔3236 ÷3 = 〔331300－600=
〔346 ×40 = 〔351200 －500 = 〔36130× 3=
〔3739＋43 = 〔3849－26= 〔3993÷ 3 =
〔4090－34= 〔412×210= 〔4286÷2 =
〔4337 ＋ 36= 〔4490－43= 〔45800×8=
〔461200－400= 〔47120－ 40= 〔4833× 2 =
〔4929＋32 = 〔5039＋ 26=
470÷9= 522÷6= 312÷7= 570÷8=
38+53×47 67+81×90