Question: put 20, 40, 60, 80, 100, 120, 140, 160, 180 into nine equal squares of the rectangle, so that each direction (transverse direction) is equal

16020120
60100140
8018040

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1. 288 to 192 240 to 160 192 to 128 144 to 96 96 to 64 40 to 80 60 to 90 80 to 100 120 to 180
2. Number reasoning: 1,1 / 2,3 / 13,1 / 10,5 / 121 ()
3. The answer given by number reasoning 2 5 13 38 () is 121 116 106 91 2*3-1=5 5*3-2=13 13*3-1=38 38 * 3-2 = 116 multiply 3 minus 1, multiply 3 minus 2 cycle (there is an error here) 38 * 3-2 = 112
4. 1, number reasoning 5 / 3, 5 / 4, 10 / 8, (), 13 / 12, answer and rule 2, number reasoning 124361251020, (), answer is 71428, find the rule
5. Numerical reasoning 4,3 / 2,20 / 27,7 / 16,36 / 125, () 1,4,13,40121, () The main thing is to write the process clearly
6. 1. There is a tank with a square bottom. If its side is unfolded, it is a square with a side length of 60cm. What is the volume of the tank? 2. If the height of a cuboid is increased by 3cm, it will become a cube. At the same time, the volume of the cuboid is increased by 243cm3. How about the volume of the original cuboid?
7. If A1 = 1, then S4 = () A. 7B. 8C. 15D. 16
8. Mr. Zhang has two stamps with 50 marks and two stamps with 80 marks. How many kinds of postage can he pay with these stamps
9. Let the corresponding points of rational numbers a, B and C on the number axis be as shown in the figure, and simplify | B-A | + | a + C | + | C-B |
10. Use it first___________ The rule transforms subtraction in the mixed operation of rational numbers into_____ And then in use_____ ,_____ The calculation is simple
11. Use 20.30.40.50.60.70.80.90 to form two chains. The total number of five numbers is 300
12. Put seven numbers 40, 80120160200240280 in the circle to make the sum of each line equal to the sum of each circle
13. Please put the 8 numbers of 10, 20, 30, 40, 50, 60, 70 and 80 so that the sum of the 3 numbers on each line and around each circle is 120 Fill in the 8 numbers from 10 to 80 in the two small circles on the top, one circle in the middle, two small circles on the left and two small circles on the right, so that the sum of the three numbers on each line and around each circle is 120,
14. Put the eight numbers 10, 20, 30, 40, 50, 60, 70 and 80 into the small circle, so that the sum of the five numbers in each big circle is 210
15. Put eight numbers 10, 20 and 30.80 in the circle, which is the sum of five numbers on each big circle, equal to 210
16. Two circles are equal to three squares, one square and two triangles are equal to one circle. How many times is a square a triangle? How many times is a circle a triangle?
17. Three triangles plus two circles equals 78. Two triangles plus three circles equals 72. How many triangles and circles represent?
18. Three triangles and two circles are equal to 72, two triangles and three circles are equal to 78?
19. Circle plus triangle equals 78. Circle minus triangle equals 22. How much circle equals, how much triangle equals
20. Three circles by two circles by one circle equals 152625, three triangles by two triangles by one triangle equals 62515, what do triangles and circles represent A triangle is equal to 625152