16.9÷x=0.3解方程 3.6÷(0.2+0.3)脱式计算

3.6÷(0.2+0.3)脱式计算  

3.6÷(0.2+0.3)脱式计算

原式等于
3.6÷0.5
=7.2
所以原式的计算结果为7.2

3.6÷(0.2+0.3)能简算吗

死算就行了。
3.6÷(0.2+0.3)
=3.6÷0.5
=7.2

简便计算9.7×0.2+0.3×0.22

9.7×0.2+0.3×0.22
=9.7×0.2+0.3×0.2+0.3×0.02
=(9.7+0.3)×0.2+0.3×0.02
=10×0.2+0.3×0.02
=2+0.006
=2.006

0.36×98 3.6×0.2脱式计算

0.36×98
=0.36x（100-2）
=0.36x100-0.36x2
=36-0.72
=35.28
3.6×0.2
=3.6x2x0.1
=7.2x0.1
=0.72
谢谢，请采纳

脱式计算 3.78÷3.6×（0.26+0.3）

3.78÷3.6×（0.26+0.3）
=（3.6+0.18）÷3.6×0.56
=3.6÷3.6×0.56+0.18÷3.6×0.56
=0.56+0.05x0.56
=0.56+0.028
=0.588

简便计算9.7×0.2+0.3×0.22是多少

9.7×0.2+0.3×0.22
=9.7×0.2+0.3×0.2×1.1
=（9.7+0.33）×0.2
=10.03×0.2
=2.006

5.65+4.35÷0.3-0.2脱式计算

5.65+4.35÷0.3-0.2
=5.65+14.5-0.2
=20.15-0.2
=19.95

(0.1*0.1+0.2*0.2+0.3*0.3+0.4*0.4)/(0.1*0.1*0.1+0.2*0.2*0.2+0.3*0.3*0.3+0.4*0.4*0.4)怎么算，要方法？

分子分母同乘以1000试着做做
原式=(1*1+2*2+3*3+4*4)*10/[1*1*1+2*2*2+3*3*3+4*4*4]
=(1+4+9+16)*10/(1+8+27+64)
=300/100
=3

3.86—9÷7.2 0.85×(21.9--7.6÷4） 3.78÷3.6×（0.26+0.3） 脱式计算

3.86—9÷7.2
=3.86-1.25
=2.61

0.85×(21.9--7.6÷4）
=0.85×（21.9-1.9）
=0.85×20
=17

3.78÷3.6×（0.26+0.3）
=3.78÷3.6×0.56
=1.05×0.56
=0.588

[85-(3.6+3.6)]#2.6脱式计算

[85-(3.6+3.6)]×2.6
=【85-7.2】×2.6
=77.8×2.6
=202.28