2021.02.01 口算: 25+17= 60×5= 32+68= 56+79= 64-28= 80+30= 60+70= 18+25= 40×6= 54+63= 25+38= 36+19= 16+6= 50×3= 0×930= 27+30= 2×40= 10×40= 12+50= 10×6= 竖式计算: 40×3= 720-315= 972-345= 72+39= 脱式计算: (25-15)÷(30÷6) 68+9÷3 = = = = 2021.02.02 口算: 32+30= 5×20= 60×4= 13+64= 25+74= 竖式计算: 213+109= 872-236= 150-90= 570-309= 脱式计算: 33+10×9 68+(99-67) = = = = 2021.02.03 口算: = = = = = = = = = = = 竖式计算: 788-619= 518+171= 404+219= 76-17= 脱式计算: 35÷5+20×5 (150-75)×(25-20) = = = = 2021.02.04 口算: 竖式计算: 250+300= 156-97= 386+479= 321×2= 脱式计算: 32+(32÷8) 300-(300-299) = = = = 2021.02.05 口算: = = = = = = 竖式计算: 65+35= 157-38= 1500-700= 42×2= 脱式计算: = = = = 2021.02.06 口算: = = = = = = = = = = = = = = = = 竖式计算: 41+290= 719+197= 28×30= 40×25= 脱式计算: 260+26+615 3+657-123 = = = = 2021.02.07 口算: 91-59= 75+78= 51-24= 600-50= 54-9= 26-18= 350-50= 80-36= 500-250= 560-360= 59-42= 100-60= 250-205= 3×10= 8×40= 63-36= 16+38= 62-35= 47-29= 8+71= 竖式计算: 74×4= 17×9= 420÷7= 16×7= 脱式计算: 187+299-299 58+460-64 = = = = 2021.02.08 口算: 77-9= 45-27= 16-9= 260-68= 136-70= 45-5= 45÷5÷9= 37-19= 60-12= 85-50= 66-6= 100-20= 640-40= 12+57= 24-8= 78-7= 28-18= 37-13= 80-60= 34-20= 竖式计算: 900-807= 25×5= 458+542= 423+123= 脱式计算: 81×3-40 33+11+48 = = = = 2021.02.09 口算: 840-640= 900-540= 230-80= 74-45= 55-29= 46+82= 10×5= 9×5= 13+52= 17+36= 79-22= 45+29= 70×4= 135+34= 30×5= 35+20= 21+30= 10+18= 80×0= 4×70= 竖式计算: 75+34= 57+33= 99+1= 84-47= 脱式计算: = = = = 2021.02.10 口算: = = = = = = = = 竖式计算: 93-31= 23+19= 1100-100= 21×3= 脱式计算: 12×8+100 6×250×0 = = = = 2021.02.11 口算: = 竖式计算: 30×6=...