First grade primary school mathematics problem solving triangle minus square equal to 30, triangle plus square equal to 50, how many triangles, how many squares? Thank you very much, but please help to write the disintegration process. Thank you very much!

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• 1. A mathematical problem, two circles equal to three triangles, three triangles equal to four diamonds, known a circle and a triangle and two diamonds equal to 800, find three
• 2. Two circles are equal to three triangles, three triangles are equal to four rhombus. Given that a circle and a triangle and two rhombus are equal to 800, how many are each of the three figures
• 3. Triangle + box = 89 circle + box = 67 triangle + circle = 60
• 4. Circle box = 120 triangle box = 78 triangle circle = 50, what is the number in the circle, what is the number in the triangle, what is the number in the box
• 5. Find a circle = [] a triangle = [] a square = [] Two circles + three triangles = 51 three circles + two squares = 84 one square = two circles
• 6. 1) Circle * triangle = 300, (2) square * triangle = 15, (3) square * circle = 180. These are three known conditions. How many are triangle, circle and square? How can you explain it to children in a simple way
• 7. Mathematical triangle + circle + square + square = 16 Triangle + circle + square + square = 16 Circle + square + triangle + triangle = 13 Square + triangle + circle + circle = 15 Find triangle =? Circle =? Square =?
• 8. Triangle + circle = 35 circle + square = 57 triangle + square = 46 triangle is how many circle is how many square
• 9. Three triangles and four circles are equal to 17, three triangles and one circle is equal to 11
• 10. Triangle plus triangle plus circle plus circle = 24, triangle = circle plus circle, triangle = (), circle equals ()
• 11. A mathematical problem. Circle plus triangle equals 26, triangle plus triangle plus circle equals 65
• 12. Triangle plus square equals 35, square plus circle equals 37, circle plus triangle equals 36, then triangle is (), square is (), circle
• 13. If a square times a triangle equals 36 and a square divided by a triangle equals 4, then what is the square equal to and what is the triangle equal to
• 14. Two squares plus two triangles are equal to 36, two squares plus five triangles are equal to 60. How many squares and triangles are there
• 15. A square with a circle equals 3. A circle with a square equals 1. A square with a triangle equals 6 If a triangle sets a square, it is equal to 4; if a triangle sets a circle, how much is it? If a circle sets a triangle, how much is it?
• 16. Square equals three triangles, triangle plus square equals 48, circle equals 252 divided by triangle
• 17. Square times triangle times square triangle equals triangle
• 18. Square + triangle = 12, triangle + circle = 20, circle + square = 18, how many are square, circle and triangle
• 19. Triangle plus circle equals 18, triangle minus circle equals 6, triangle equals how many, circle equals how many
• 20. Triangle plus triangle equals circle plus circle plus circle, triangle plus circle equals 18