四年级竖式计算 简便运算 解方程
竖式计算
2.38÷0.34= 400÷25= 221×16= 307×26= 183× 15=
135×24= 58×912= 44÷8= 3 508×15= 0.195÷1.3=
2.38 ÷0.34= 14.1÷0.047= 0.012÷2.5= 2.38÷0.34= 408×25=
3.06÷1.7= 21.12÷0.6= 7.2÷2.4= 72×98 = 103×27=
5.22×0.3 = 9.99×0.02= 4.67×0.9 = 5×2.44= 328÷16 = 144÷0.25= 201÷250 = 78÷16= 209÷5= 12÷16=
简便运算
13.2-4.64+6.8-5.36= 681+681×99= 39.6+5.63-28.75= 15.4-(5.4+1.5)= 25.77-3.56-5.54= 3.72+9.99-10.47=
3.73+1.258+5.27+8.72= 16.5-9.9= 7.94-(0.56+2.49)=
2.67+5.04+1.96= 0.802+5.33+0.198+2.33= 125×32×25=
21.43-2.17-7.83+8.57= 14.46-2.32+3.54 = 10.78-2.23-
1.76= 5.23-(1.23-0.58)= 80-20.41-15.28-0.31 9.7×0.72↓-0.7×0.72+0.72=
8.5×5.76-7.5×5.76= 50×0.37×0.2= 1.25×32×0.25=
5.7×4.3+5.7×6.7-5.7= 7.2×6.5-0.65×28= 8.7×99=
8.7×10.1= 1.25×0.72= 50.27+5.6-10.27=
12.5×2.5×3.2= 10.1×101-10.1= (0.4+40)×2.5=
解方程
y-23=45 12-x=8.5 x ÷4=15 8 y+3.5=10 4y-24=16
2.5x ÷6=2.5 (26-x )÷12=0.5 35÷(x+4)=7 10.7+x=21 32.8-9x=17.5 7×8+4x=128 10÷y=5 3x+2.4x=10.8 8+x=9.4 5.3x-0.9x=14.7 X+3=18 X-6=12 56-2X=20 23y-23=23 4x-20=0 80y+20=100 80y-90=70 78y+2y=160 88-x=80 9-4x=1 20x=40 65y-30=100 51y-y=100 85y+1=-86 45x-50=40