六年级简便运算题50道 简便运算：（2.5-2.5*0.6）/0.4 31.4*0.65+4.5*3.14-3又50分之7

简便运算：（2.5-2.5*0.6）/0.4 31.4*0.65+4.5*3.14-3又50分之7  

简便运算：（2.5-2.5*0.6）/0.4 31.4*0.65+4.5*3.14-3又50分之7

2.5(1-0.6)/0.4
=2.5*0.4/0.4
=2.5*1
=2.5
31.4*0.65+0.45*31.4-3.14
=31.4*(.65+.45)-3.14
=31.4*1.1-31.4*0.1
=31.4*(1.1-0.1)
=31.4

简便运算 1.(2.5-2.5*0.6)/0.4 2.1.47/(2-1.02)+0.61*14 3.2000/12.5/25/0.8

(2.5-2.5*0.6)/0.4
=(2.5*1-2.5*0.6)/0.4 =2.5*(1-0.6)/0.4=2.5*0.4/0.4=2.5
1.47/(2-1.02)+0.61*14 = 1.47/0.98 +0.61*14=0.03*7*7/(0.02*7*7) +0.61*14=1.5+0.61*14=10.04
2000/12.5/25/0.8=2000/(12.5 * 0.8*25)=2000/250=8*250/250=8

11.7乘2.5-2.5乘10.7简便运算

11.7乘2.5-2.5乘10.7
=2.5x(11.7-10.7)
=2.5x1
=2.5

50÷2.5+1.8×4.5简便运算

50÷2.5+1.8×4.5
=﹙50×4﹚÷﹙2.5×4﹚+0.9×2×4.5
=200÷10+0.9×9
=20+8.1
=28.1

0.6x2.5x0.4的简便运算

0.6x2.5x0.4的简便运算
=0.6x(2.5x0.4)
=0.6x1
=0.6

88.4*2.5-22.4/0.4简便运算

88.4*2.5-22.4/0.4
=88.4*2.5-22.4÷2/5
=88.4*2.5-22.4*2.5
=（88.4-22.4）*2.5
=60*2.5
=150

3.6÷2.5×0.65的简便运算

3.6÷2.5×0.65的简便运算
解：
3.6÷2.5×0.65
=1.44×0.65
=0.936

0.6除以2.5+2.5除以0.4-2.5怎么简便运算

0.6除以2.5+2.5除以0.4-2.5
=0.6×0.4+2.5×2.5-2.5
=0.24+2.5*(2.5-1)
=0.24+2.5*1.5
=0.24+3.75
=3.99

5.5÷2.5+4.5*0.4简便运算怎么做

5.5÷2.5+4.5×0.4
=5.5÷2.5+4.5÷2.5
=（5.5+4.5）÷2.5
=10÷2.5
=4

3.9/2.5 6.1*0.4的简便运算

3.9÷2.5+6.1×0.4
=3.9×0.4+6.1×0.4
=（3.9+6.1）×0.4
=10×0.4
=4