80×5= 40×5= 15×5＋5= 600－50=56×2= 200－36= 15+5×3= 380+50=789＋0= 300÷5= 15×4＋8= 680×0= 40×25= 6×6+6= 436－24= 70＋550=800×6= 500×4= 540÷9= 14×5=列竖式或脱式计算39+83×55 89+56×61 88+38×49= = == = =125+82×37 152+58×33 117+58×77= = == = =28×32＝54×25 ＝312÷7= 570÷8=56.3-10= 4.5+5.5= 10-6.5= 20+8.7=4000×2= 800×3= 24×4= 2×41=7×40= 120 ÷4= 56÷8= 240÷6= 450÷9= 270÷3= 25×4= 5×400=210×2= 280+70= 9×9+1= 1.4-0.5=7.2+0.3= 15.9-10.5= 0.4+0.6= 40+60=21×10= 14×6= 16×50= 23×20=2×2+3= 72÷8= 54÷6= 250÷5= 178÷2= 30×80= 800÷8= 265＋85=110×35= 901÷3= 0÷245= 0×245=245÷5= 3000－300= 605÷5= 50×50=306÷3= 702－199= 480÷3= 120×80=27×8= 62×15=7×10=93-31=23+19=1100-100= 23+19=82-26=150-90=50-39= 18+71=800+600=9300-300=39÷3= 96÷3=8000-3000=39÷3=50÷5= 22÷2=44+29=63-52=34+19=列竖式或脱式计算12+57×34 863+26×26 353+55×63= = == = =105+53×63 555+28×72 373+68×19= = == = =362÷6= 525÷3＝28×250＝52×49=日期：用时：做对：题奖励：口算82 ×4 = 1 ×88 = 20 ÷5 = 35－35÷7=20 ÷5 = 576 ÷6 = 390 ÷6 = 40＋100÷5= 228 ÷3 = 56 ÷2 = 57 ÷3 = 64÷8＋70=90 ÷5 = 873 ÷3 = 576 ÷4 = 72÷9－5= 980 ÷5 = 693 ÷7 = 987 ÷3 = 120×5÷2= 735 ÷7 = 428 ÷4 = 153 ÷9 = 47＋72÷8= 832 ÷8 = 20 ×1 = 8 ×80 = 320÷8＋64= 60 ×3 = 50 ×4 = 90 ×7 = 400÷ 8 + 350= 32×2= 2×13= 473—221= 32×2= 210+489= 21×2= 23×2= 33÷3= 971-242= 458-452= 99÷9= 21-11=88÷4= 84÷2= 44×2= 130×3=31×4= 29-18=日期：用时：做对：题奖励：口算90－26= 8×6＋7= 522+23= 6×4÷2= 120×4= 350－80= 570＋50= 23×3= 180÷3= 200×8= 530－70= 850×2= 263－80= 850÷2= 98＋26×0= 102×2= 700×3= 310×3= 300÷5= 80×5= 列竖式或脱式计算196+55×31 198+12×89 137+22×88 = = == = =132+12×37 250+23×38 440+13×36 = = == = =51×16 ＝78×22＝416÷4＝823÷8＝日期：用时：做对：题奖励：口算63 ÷3 = 70 ×5 = 50 ×9 = 40÷2＋174= 10 ×8 = 7 ×30 = 2 ×90 = 9×4＋420= 70 ×8 = 6 ×20 = 9 ×70 = 2×80÷4=2 ×90 = 70 ÷5 = 22 ÷2 = 80×6×2=5 ×24 = 7 ×74 =6 ×20 = 60－12×3 = 9 ×71 = 11 ×2 = 68 ×3 = 100－50÷5 = 4 ×89 = 49 ×7 =8 ×47 = 640＋60×4= 4 ×46 = 5 ×60 = 79 ×3 = 30÷5＋240= 38×60= 14×4= 130×4= 810÷3=72÷24= 16×4= 36÷3÷2= 50－24÷4=9＋9÷9= 800－800÷4= 8×9－7= 72－72÷6=14+25= 41×3= 457+17= 44÷4=88÷4= 456-120=日期：用时：做对：题奖励：口算630÷9= 350÷7= 700×2= 18×4=320×3= 60×15= 72÷6÷2= 400×3=8＋2×20= 22＋40= 7×8－7= 56÷8=380－190= 400×6= 50－23= 35×0=40×6= 300×6= 7＋3×4= 90－26=列竖式或脱式计算81÷9＋877 66×5+774 921+7×4= = == = =80×6×2 770÷7+65 807＋20÷2 = = == = =87×19=362÷6=839÷9＝602÷7＝日期：用时：做对：题奖励：口算400×5= 50－31= 425×0= 528－0=450＋80= 57＋140= 800×2= 3000－400=420÷7= 6×80＋20= 420-330= 5×28=60×5= 17×3= 212＋88= 630÷9= 350÷7= 700×2= 18×4= 320×3=列竖式或脱式计算63×43= 367÷4=795÷5=42×53= 19×64=470÷9=64+24×35 83+57×61 55+39×63 317+46×36= = = == = = =6000+4000= 5000—500= 8600—600= 1300—500= 600×4= 59 +42= 87—38= 43×7=245×9= 309×5= 490×5= 75 +21=69 —57= 49 +37= 81 —25= 40÷8=40×5= 15×5＋5= 600－50= 56×2=列竖式或脱式计算（152-87）÷12 31×27÷9 （12+15）×53 75×（32+22）= = = == = = =4.82－2．65=31．3＋28．7=26×96=59×27=420÷8= 793÷8=84÷4=21×3=82-26=64+26=19+66=80-22=7×10=300+700=85+28=76-17=22+29=800+600=42÷2=40-11=90-43= 900+4000+80=31×2=93-31=9900-900=110-60=列竖式或脱式计算640÷7= 19×64=470÷9=52×49=34×54= 48×34＝328＋172×6 516－123＋77 347×4－192 4×38－12 = = = == = = =日期：用时：做对：题奖励：口算0÷245= 0×245= 0+245= 63-25=31-15=34+19=18+71= 50÷5=3100-1000=1600-700=5400-400=78-69=18+71=2000+60=58+36= 9300-300=80-22=44+29=76-17= 34+19=列竖式或脱式计算6×25＋75×6 37×100－37 451＋549÷3 34＋306×2 = = = == = = =18×79= 101×91= 91×75=35×92=412÷4= 102÷6=日期：用时：做对：题奖励：口算82-62=2000+800=74-29+48= 245÷5=605÷5= 50×50= 306÷3= 3000－300=22÷2=44+29=63-52=34+19=800+600= 702－199= 62×15= 480÷3=120×80= 27×8= 39÷3=96÷3=列竖式或脱式计算824÷4x3 （601-246）÷5 201+232-365 （601-246）÷5 = = = == = = =865÷5=984÷8= 437÷3=27×16＝39×66＝17×51＝日期：用时：做对：题奖励：口算2.7+2.3=10.8-2.8=7.2-3.2=4.8+7.7=5-1.8=630÷9= 350÷7= 700×2=18×4= 320×3= 60×15= 72÷6÷2=400×3= 8＋2×20= 22＋40= 7×8－7=56÷8= 380－190= 400×6= 50－23=列竖式或脱式计算302+38×67 36+27×38 82+36×27 198－98×2 = = = == = = =43×22= 175÷5= 460÷8=816÷4= 14×53=287÷7=日期：用时：做对：题奖励：口算8×6＋7= 522+23= 6×4÷2= 120×4=80×5= 40×5= 15×5＋5= 600－50=56×2= 200－36= 15+5×3= 380+50=789＋0= 300÷5= 15×4＋8= 680×0=40×25= 6×6+6= 436－24= 111×9=列竖式或脱式计算60－12×3 64÷8＋456 640＋60×4 600×8÷3 = = = == = = =462÷3＝780÷4＝729÷9＝66×65=55×18=75×26=日期：用时：做对：题奖励：口算35×0= 40×6= 300×6= 7＋3×4=90－26= 860÷4= 19×5= 40×20= 520－430= 120×3= 360+80= 300×7= 310×3= 200×5= 320×2= 660÷6= 700×2= 80×3= 630÷9= 350÷7=列竖式或脱式计算（25+38）x15 （59-187）÷3 1500-125x8 25x8x9 = = = == = = =502×6= 9×303= 325×8=179÷8= 834÷8= 525÷5=日期：用时：做对：题奖励：口算60×15= 72÷6÷2= 400×3= 8＋2×20=22＋40= 400×20= 210÷7= 4500÷9=5×80= 7×8－7= 56÷8= 380－190=400×6= 50－23= 35×0= 40×6=300×6= 7＋3×4= 90－26= 5-1.7=列竖式或脱式计算6×25＋75×6 37×100－37 451＋549÷3 34＋306×2 = = = == = = =905÷5= 450×78= 899÷6=870÷8= 32×37=45×12=日期：用时：做对：题奖励：口算581＋12= 400×5= 45÷3= 51＋31=13×3= 60÷4= 120－50= 300－64=64×10= 6＋6×7= 400×5= 50－31=425×0= 528－0= 450＋80= 57＋140=800×2= 3000－400= 420÷7= 6×80＋20=列竖式或脱式计算4000 ÷ 8 + 350 320÷8＋64 270 ÷ 3 ×9 630 ÷ 9 + 320= = = == = = =5.5-4.7=6.6+2.6= 6.4-2.8=816÷8＝79×29=43×36=日期：用时：做对：题奖励：口算581＋12= 400×5= 45÷3= 51＋31=13×3= 60÷4= 120－50= 300－64=64×10= 6＋6×7= 400×5= 50－31=425×0= 450＋80= 57＋140= 800×2=3000－400= 420÷7= 60×9= 55＋41=列竖式或脱式计算22×4＋221 21×3＋410 40÷2＋174 147＋72÷8 = = = == = = =31×81=97×22=57×21=156÷5= 612÷4= 446÷5=日期：用时：做对：题奖励：一、口算：48÷6= 1200＋800= 720＋80= 460＋400= 200＋800= 3000－1500= 760＋60= 27＋53= 240－120= 5000－500= 3600－600= 50＋800= 500＋300= 450＋500= 360－80=4＋0.6= 7.3－2.9= 10－0.7= 8.2-5=6.5+4.7= 1.2-0.3= 4.6+2.4= 3.8+6.6=二、估算。