A rectangular carton with a square bottom is just a square with a side length of 6 decimeters. How much cardboard does it need to make this carton

A rectangular carton with a square bottom is just a square with a side length of 6 decimeters. How much cardboard does it need to make this carton

Side expanded square
The rectangle is 6 in height and 1.5 in width
The whole side area is 36
Plus the bottom is 2.25
If there's a lid, it's 2.25
At least 36 + 2.25 + 2.25 = 40.5

Give me a math problem
48,

1.3/7 × 49/9 - 4/3
2.8/9 × 15/36 + 1/27
3.12× 5/6 – 2/9 ×3
4.8× 5/4 + 1/4
5.6÷ 3/8 – 3/8 ÷6
6.4/7 × 5/9 + 3/7 × 5/9
7.5/2 -（ 3/2 + 4/5 ）
8.7/8 + （ 1/8 + 1/9 ）
9.9 × 5/6 + 5/6
10.3/4 × 8/9 - 1/3
11.7 × 5/49 + 3/14
12.6 ×（ 1/2 + 2/3 ）
13.8 × 4/5 + 8 × 11/5
14.31 × 5/6 – 5/6
15.9/7 - （ 2/7 – 10/21 ）
16.5/9 × 18 – 14 × 2/7
17.4/5 × 25/16 + 2/3 × 3/4
18.14 × 8/7 – 5/6 × 12/15
19.17/32 – 3/4 × 9/24
20.3 × 2/9 + 1/3
21.5/7 × 3/25 + 3/7
22.3/14 ×× 2/3 + 1/6
23.1/5 × 2/3 + 5/6
24.9/22 + 1/11 ÷ 1/2
25.5/3 × 11/5 + 4/3
26.45 × 2/3 + 1/3 × 15
27.7/19 + 12/19 × 5/6
28.1/4 + 3/4 ÷ 2/3
29.8/7 × 21/16 + 1/2
30.101 × 1/5 – 1/5 × 21
31.50＋160÷40 （58+370）÷（64-45）
32.120-144÷18+35
33.347+45×2-4160÷52
34（58+37）÷（64-9×5）
35.95÷（64-45）
36.178-145÷5×6+42 420+580-64×21÷28
37.812-700÷（9+31×11） （136+64）×（65-345÷23）
38.85+14×（14+208÷26）
39.（284+16）×（512-8208÷18）
40.120-36×4÷18+35
41.（58+37）÷（64-9×5）
42.(6.8-6.8×0.55)÷8.5
43.0.12× 4.8÷0.12×4.8
44.（3.2×1.5+2.5）÷1.6 （2）3.2×（1.5+2.5）÷1.6
45.6-1.6÷4= 5.38+7.85-5.37=
46.7.2÷0.8-1.2×5= 6-1.19×3-0.43=
47.6.5×（4.8-1.2×4）= 0.68×1.9+0.32×1.9
48.10.15-10.75×0.4-5.7
(I can't find the answer and process, it's too much to do the project myself!)

If the math problem is the main way, how to calculate it simply and how to calculate it
6030-418364÷82+108=?
2870÷3-1010÷3=?

6030-418364÷82+108=1036
2870÷3-1010÷3=620

The quotient of 4 (?) 8 divided by 45 is a single digit, and the largest number in () is filled in ()

4

To solve this mathematical problem, the detailed process [2 - (1 and 2 / 3-1.5) divided by 1 and 5 / 12] multiplied by 3 / 16 is required

[2 - (1 2 / 3-1.5) divided by 1 5 / 12] multiplied by 3 / 16
=[2-1/6÷17/12]*3/16
＝【2-2/17】*3/16
＝32/17*3/16
＝6/17

Write an arbitrary two digit number and repeat it three times to form an 8-digit number. Divide the 8-digit number by the two digit number and divide it by 9. Q: what is the remainder?

Let the two digits be 10A + B, and repeat it three times to form an 8-digit: 1000000 (10a + b) + 10000 (10a + b) + 100 (10a + b) + 10A + B = 1010101 (10a + b). Divide the 8-digit by the two digits to get the quotient: 1010101 (10a + b) / (10a + b) = 1010101, then 1010

Square of X + X + 1 = 0, find the value of the third power of X + 2, the second power of X + 2006

X & sup2; + X + 1 = 0, the solution is the imaginary root. If it is in the range of real number, there is no solution. If it is in the range of complex number, the most direct solution is to replace it with the solution (the original formula can be changed to 2005-2x)

What is the quotient of the sum of 1 / 9 and its reciprocal minus the largest three digits?
What is the quotient of the sum of 1 / 9 and its reciprocal minus the largest three digits?

999÷(1/9+9)
=999*9/82
=8991/82

New mathematics · grade 4 summer vacation paradise page 13
There is a pile of sugar, 3, 3 less than 2, 4 less than 3, 5 less than 4. How much sugar is there at least? Can you make up a topic like this? Have a try

3×4×5=60
60+1=61
There are at least 61 pieces of sugar in this pile
What is the minimum number of a number divided by 3 and 2, divided by 5 and 3, divided by 7 and 2?

The reciprocal of 49 is______ ，______ One such reciprocal is the largest single digit

The reciprocal of 49 is 94, the largest one digit is 9, 9 △ 94 = 9 × 49 = 4, so the answer is: 94; 4