Add 2468 12141618 horizontally, vertically and obliquely to be equal to 30. Fill 2468 12141618 in 9 squares and repeat one number

A "10" should be added:
16 2 12
6 10 14
8 18 4

RELATED INFORMATIONS

1. Use - 2. - 1.0.1.2.3.4.5.6. Nine numbers are horizontally, vertically and obliquely in nine squares. The sum of three numbers equals Is there any rule in this kind of calculation
2. Fill 3,0,6,9 in the square so that the sum of the three numbers in the horizontal, vertical and oblique squares is equal to 15,12,9,6,3
3. In the square grid, ∠ AOB is placed as shown in the figure, then sin ∠ AOB = () A. 55B. 255C. 12D. 2
4. As shown in the figure, in the square grid, the tangent value of ∠ AOB is___ ．
5. As shown in the figure, in the square grid of 4 * 4, what is the size relationship of ∠ 1, ∠ 2, ∠ 3?
6. Place the cube dice (the number of points on the opposite side is 1 and 6, 2 and 5, 3 and 4 respectively) on the horizontal table top, as shown in Figure 1. In Figure 2, roll the dice 90 ° to the right, and then rotate it 90 ° counterclockwise on the table top to complete a transformation. If the initial position of the dice is shown in Figure 1, the number of points on the upper side of the dice after 10 consecutive transformations according to the above rules Yes () A. 6B. 5C. 3D. 2
7. As shown in the figure, which two straight lines are corner one and corner two, corner three and corner four cut by which one? What angles are they?
8. As shown in the figure, which two straight lines are cut by which one respectively for ∠ 1 and ∠ 2, ∠ 3 and ∠ 4? What are their angles?
9. As shown in the figure, which two straight lines are cut by which one respectively for ∠ 1 and ∠ 2, ∠ 3 and ∠ 4? What are their angles?
10. In a triangle, if an acute angle equals 30 degrees and one side equals half of the other side, it is proved that it is a right triangle
11. Fill - 1,2, - 3,4, - 5,6, - 7,8, - 9 in the box so that the three numbers of each diagonal in each row and column satisfy two conditions Condition 1: the multiplication of 3 numbers is negative Condition 2: the sum of absolute values of 3 numbers is equal
12. In the six by six grid, fill in the 36 numbers of 1 ~ 36, so that each row, each vertical line and each diagonal line are equal to 111
13. Fill in 9 different numbers in the 3 × 3 square so that the multiplication of 3 numbers in each row and column is equal?
14. 18.12.9.6.24.27.3.9.21 fill in the nine spaces of the square so that the number of three in each row equals 43
15. Enlarge the triangle ABC by 2:1 and draw the enlarged figure,
16. (triangle divided by triangle) times (square square) + (circle plus circle) = () (a is not equal to 0) Triangle is not equal to 0
17. If the circle is divided by triangle = 12 and 15, then circle + triangle = 353, then circle = (), triangle = () The store brought in 2500 kg of fruit. After 75 baskets of fruit were sold, there were 125 kg left. How many baskets of apples were brought in? It costs 24 yuan to buy 3kg apples and 4kg oranges, and 25 yuan to buy 3kg oranges and 4kg apples. How much is a kilogram of apples and a kilogram of oranges?
18. Square divided by 5 is equal to 19 / 18 of triangle plus triangle to find the value of square and triangle Square divided by 5 is equal to 19 / 18 of triangle plus triangle to find the value of square and triangle A circle divided by six equals a star, and a circle minus a star equals 81 / 10
19. In the square divided by triangle equals 198, the remainder is 76, and the triangle is the smallest
20. How many triangles does a pentagram have As shown in the figure, there are several triangles