A simple calculation method of 23 * 2 * 4 + 25 * 4 * 2 + 27 * 1 * 8 + 25 * 8 * 1

A simple calculation method of 23 * 2 * 4 + 25 * 4 * 2 + 27 * 1 * 8 + 25 * 8 * 1

23*2*4+25*4*2+27*1*8+25*8*1
＝23*8+25*8+27*8+25*8
＝（23+25+27+25）*8
＝100*8
＝800

Simple calculation of 37.38-15.34 + 12.62-14.66

37.38-15.34+12.62-14.66
=（37.38+12.62）-（15.34+14.66）
=50-30
=20

Calculate [2 (7 / 9)] ^ 0.5 + 0.1 ^ - 2 + [2 (10 / 27)] ^ (- 2 / 3) - 3 π ^ 0 + 37 / 48

[2(7/9)]^0.5+0.1^-2+[2(10/27)]^(-2/3)-3π^0+37/48
=5/3+100+9/16-3+37/48=100

(5.4 * 0.75 * 1.3) \ \ (2.5 * 3.9 * 0.27) simple operation,

(5.4*0.75*1.3)\(2.5*3.9*0.27)
=（5.4/0.27）*（0.75/2.5）*（1.3/3.9）
=20*0.3*1/3
=6*1/3
=2

How to calculate 78 × 6 + 21 × 6 + 6 simply?

78*6+21*6+6
=78*6+21*6+1*6
=6*(78+21+1)
=6*100
=600

Simple operation problem, (78.6-0786 * 25 + 75% * 21.4) △ 15 * 2011

The decimal point is not complete
Merge congeners
（78.6*（1-0.25）+0.75*21.4）=78.6*0.75+21.4*0.75=75
75/15=5
5*2011=10055

9 / 17 × 27 / 49 + 21 / 17 × 9 / 49, how to operate easily

Original formula = (9 / 17) × (27 / 49 + 21 / 49)
=(9/17)×48/49
=432/833

How to calculate 6.3 times 27 plus 1.9 times 21

Decompose 0.9 * 7 * 9 * 3 + 1.9 * 21 and then 21 (8.1 + 1.9) to get 21 * 10 = 210

Simple calculation of 3 + 6 + 9 + 12 +... + 27

Do you want my own formula?

How to simplify the calculation of 154 - (5498)

The minus sign is in front of the bracket. To remove the bracket, you need to change the sign
154－（54＋98）
＝154－54－98
＝100－98
＝2