Circle plus triangle equals 78. Circle minus triangle equals 22. How much circle equals, how much triangle equals

Circle 58 triangle 28

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1. Three triangles and two circles are equal to 72, two triangles and three circles are equal to 78?
2. Three triangles plus two circles equals 78. Two triangles plus three circles equals 72. How many triangles and circles represent?
3. 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?
4. 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
5. 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
6. 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,
7. Put seven numbers 40, 80120160200240280 in the circle to make the sum of each line equal to the sum of each circle
8. Use 20.30.40.50.60.70.80.90 to form two chains. The total number of five numbers is 300
9. 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
10. 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
11. 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
12. What's the ratio of triangle to circle?
13. Circle + triangle = 120 circle = 4 triangles added Circle + triangle = 120 Circle = 4 triangles added How much is a circle? How much is a triangle? (third grade mathematics) What I want is how to explain to children
14. Circle plus triangle equals 450, triangle equals circle times 4, circle equals how many, triangle equals how many
15. A is a prime number. There are () factors of A
16. What are the factors of 30 and which are prime numbers?
17. Which factors of 35, 24, 17, 14, 36, 23 are prime numbers and which are composite numbers?
18. Among the 36 factors, there are () prime numbers, () composite numbers and () even numbers
19. All the factors of 36 () where the prime number has () and the composite number has () 26＝（）＋（）＝（）＋（）＝（）＋（） 12 = () + () = () - () = () × () × () fill in the appropriate prime number
20. Judgment: the factor of a prime number is still a prime number. () 2. 20 is a factor of 20 and a multiple of 10 ()