rpct.net
当前位置:首页 >> 五年级150道小数简便算法 >>

五年级150道小数简便算法

(1)6.28+13.75+3.72 (2)42.5-16.12-5.88 (3)45.6-(15.6+12.72)13.75+(6.28+3.72) 42.5-(16.12+5.88) 45.6-15.6-12.72

4.8+8.63+5.2+0.37 5.93+0.19+2.81 1.76+0.195+3.24 2.35+1.713+0.287+7.65 1.57+0.245+7.43 6.02+3.6+1.980.134+2.66+0.866 1.27+3.9+0.73+16.1 7.5+4.9-6.5 3.07-0.38-1.62 1.29+3.7+2.71+6.3 8-2.45-1.55 3.25+1.79-0.59+1.75 23.4-0.8-13.4-

1、 1/2*2/5+9/10÷9/20 2、 5/9*3/10+2/7÷2/5 3、 1/2+1/4*4/5-1/15 4、 3/4*5/7*4/3-1/2 5、 23-8/9*1/27÷1/27 6、 8*5/6+2/5÷4 7、 1/2+3/4*5/12*4/5 8、 8/9*3/4-3/8÷3/4 9、 5/8÷5/4+3/23÷9/11 50+160÷40 (58+370)÷(64-45) 120-144÷18+35 347+

0.45*2.5= 0.8*1.25= 0.3*3.6= 0.3*0.3= 10*0.07= 0.3*1.4= 0.05*7= 0.92*0.4= 0.2*0.26= 0.14*4= 0.02*0.1= 1.2*0.3=0.2*0.4= 8.2+1.8= 100-35.22= 2.3*4=2.5*0.4= 2.4*5= 0.22*4= 3.25*0=0.9-0.52= 3.99*1= 0*3.52= 12.5*8=8÷10 = 10-1.8-7.2=

4乘(72-19)除以4+2 84.7*7-54.7*7 3.26*0.52+3.26*0.48+7.05 87.4*27.6+73.4*87.4-87.4 【10-(0.2+6.37÷0.7)】÷0.01 5.7*101 4.2*(12.5-7.5÷0.75) 30.8÷[14-(9.85+1.07)] [60-(9.5+28.9)]÷0.18 2.881÷0.43-0.24*3.5 20*[(2.44-1.8)÷0.4+0.15] 28-(3

1.\x09(1+1/2)(1+1/3)(1+1/4).(1+1/100) 2.\x09 (1-1/2)(1-1/3)(1-1/4).(1-1/100) 3.\x098+2-8+2 4.\x0925*4/25*4 5.\x097.26-(5.26-1.5) 6.\x09286+198 7.\x09314-202 8.\x09526+

口算题17*40= 100-63= 3.2+1.68= 2.8*0.4= 14-7.4= 1.92÷0.04= 0.32*500= 0.65+4.35= 10-5.4= 4÷20= 3.5*200= 1.5-0.06= 0.75÷15= 0.4*0.8= 4*0.25= 0.36+1.54= 1.01*99= 420÷35= 25*12= 135÷0.5= 3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2= 1/6

5/6+(1/6-3/4)2/5-4/11+(3/5+4/11)8/7-1/14-13/143/4-5/8+5/64/5-(1/6+3/10)2/3+4/5-3/103/7-(9/14-1/2)2/7+3/8+5/83/7+5/6+4/73/10+3/4+7/102/5-1/6+2/34/9+3/4+5/97/8+2/7+1/81/2+5/6-1/38/9-5/9+1/63/10+3/4+7/105/6+2/5+1/6+3/55/9+(4/5+4/9)5/6+

a+b)+ c = a +(b+c)1. 2.73 + 0.89 + 1.27 2. 4.37 + 0.28 + 1.63 + 5.72 a-b-c = a -(b+c)1. 10 - 0.432 - 2.568 2. 9.3 - 5.26 - 2.743. 13.4-(3.4+5.2) 4. 14.9-(5.2+4.9)5. 18.32 - 5.47 - 4.32 6. 17.29 - 5.28 - 6.29 (a * b)*c = a *(b * c)1. 25 * 6.8 * 0.04 2. 0.25

网站首页 | 网站地图
All rights reserved Powered by www.rpct.net
copyright ©right 2010-2021。
内容来自网络,如有侵犯请联系客服。zhit325@qq.com