Rules 1,2,4,6,9, (), 18 A11 B12 C13 D14 Detailed solution process

Rules 1,2,4,6,9, (), 18 A11 B12 C13 D14 Detailed solution process

thirteen
Add two adjacent numbers to get a new sequence: 3 6 10 15 22 31
A new sequence is obtained by subtracting two adjacent numbers: - 3 - 4 - 5 - 7 - 9
Add two adjacent numbers to get a new sequence: - 7 - 9 - 12 - 16
Then - 7-2 = - 9 - 9-3 = 12 - 12-4 = - 16

How to fill in "1,36", "2,18", "3,12", "4", "5" according to the rules

4,9
5,7.2
The product of two numbers is 36
May I help you!

1 plus 1 equals 1, 2 plus 1 equals 1, 3 plus 4 equals 1, 4 plus 9 equals 1, 5 plus 7 equals 1, 7 plus 18 equals 1

I believe it, and I can explain it! Maybe that's what you mean! One kilogram plus one kilogram equals one kilogram, two months plus one month equals one quarter, three days plus four days equals one week, four in the morning plus nine equals one noon, five months plus seven months equals one year, seven in the morning plus 18 equals one in the morning

Fill 10 to 18 in the 3 * 3 box so that the sum of each row, column and corner equals 42

12 11 15
10 14 18
13 17 16

Fill in 1,2,3,4,6,9,12,18,36 in a nine palace grid, so that the product of three numbers on each line is equal to 216

2 36 3
9 6 4
12 1 18

1 2 3 4 5 6 7 8 9 = 1, fill in + - × △ and brackets in 1 to 9 to make the equation equal to 1 at last

1+ 2- 3- 4+ 5+ 6- 7- 8+ 9=1

How can 1.2.3.4.5.6.7.8 be equal to 1

1×2+3-4+5-6-7+8=1

3 out of 5 equals 9 to 21

15

9.9 + how much is negative 18

-27.9+9.9=-18

How many kilograms is 18.9 liters
The average speed is 30km, the constant speed fuel consumption is 9L per hour, the oil price is 4.8l/yuan per 100km, the density of gasoline is 0.75 × 10, the third power kg / m, how much gasoline is used for the round trip?

One is the unit of volume and the other is the unit of mass, which are not equal