A 4.5-meter-long cube pool is filled with water. If all the water in the cube pool is put into a 6-meter-long, 2.5-meter-wide cuboid pool, How deep is the pool

A 4.5-meter-long cube pool is filled with water. If all the water in the cube pool is put into a 6-meter-long, 2.5-meter-wide cuboid pool, How deep is the pool


Pool depth: 4.5 * 4.5 * 4.5 / (6 * 2.5) = 6.075m



How can these formulas be easily calculated?
0.8*32+3.2*2
2.6*3.7+26*0.63
53*64+0.53*3600


0.8*32+3.2*2=0.8*32+32*0.2=32*(0.8+0.2)=32*1=322.6*3.7+26*0.63=26*0.37+26*0.62=26*(0.37+0.63)=26*1=2653*64+0.53*3600=53*64+53*36=53*(64+36)=53*100=5300



(3.95 + 3.95 + 3.95 + 3.95) × 25 simple calculation formula
Simple and comprehensive formula


(3.95+3.95+3.95+3.95)×25
=3.95x(4x25)
=3.95x100
=395



Mathematics problem: (list simple operation (comprehensive formula)) to find the answer! Remember! To be simple and easy!
(1)34.5÷2.5
(2)14.28÷3.5
(3)81.9÷45
(4)3.04×10.2
(5)50.3×2.7
(6)2.54×3.2
18: At 18:00 and 18:30. 19: 00 official view and announcement.


Mathematics problem: (list simple operation (comprehensive formula)) to find the answer! Remember! It should be simple if it can be simple! (1) 34.5 / 2.5 = 34.5 × 4 / (2.5 × 4) = 138 / 10 = 13.8 (2) 14.28 / 3.5 = 14.28 / 7 / 0.5 = 2.04 / 0.5 = 4.08 (3) 81.9 / 45 = 81.9 / 9 / 5 = 9.1 / 5 = 1.82 (4) 3.04 × 1



Can 456 △ 25 be easily calculated?


465X4÷(25X4)
=1860÷100
=18.6



Simple calculation of 456 + 102


456+102
=456+100+2
=556+2
=558
If you can understand, please ask me if you don't understand
agree with



Simple operation of 16 times 98 plus 32


16*98+32=16*98+16*2=16*(2+98)=1600



Can you use a simple method to calculate? 98 × 32 = yes, I want the formula and the process


(100-2)x32=100x32-2x32=3200-64=3136



Please observe the following formula carefully, and then use a simple method to calculate: 3 (2 ^ 2 + 1) (2 ^ 4 + 1) (2 ^ 8 + 1) (2 ^ 16 + 1) (2 ^ 32 + 1) + 1


3(2^2 +1)(2^4 +1)(2^8 +1)(2^16 +1)(2^32 +1)+1
=(2^2-1)(2^2 +1)(2^4 +1)(2^8 +1)(2^16 +1)(2^32 +1)+1
=2^64-1+1
=2^64



1 / 4 + 1 / 8 + 1 / 16 + 1 / 32 = 1 / 2-1 / 32; is there a formula for how to calculate?


The formula of equal ratio sequence can be used