There are 9 elephants and 4 golden monkeys in the zoo. What's the number of golden monkeys? What's the number of elephants?

There are 9 elephants and 4 golden monkeys in the zoo. What's the number of golden monkeys? What's the number of elephants?

There are 9 elephants and 4 golden monkeys in the zoo. What's the number of golden monkeys?
4 △ 9 = 4 / 9
What's the number of elephants compared with golden monkeys?
9 △ 4 = 9 out of 4 = 2 and 1 out of 4

How to write a math problem
Xiao Hong and Li collected some cans
The bottom diameter of the cans is 8cm and the height is 15cm. We have collected 50 cans
How many square decimeters of aluminum sheet do you need to make these cans
Xiaoqiang made a cylindrical pen holder (bottom diameter 9cm, height 15cm). He painted the part less than 2 / 5 of the height of the pen holder with color (the bottom is not painted). What is the area of the painted part in square centimeter? (the number is the whole square centimeter.)
There should be a formula

1. The surface area of a cylinder
[3.14 × 8 × 15 + (8 △ 2) ^ 2 × 3.14 × 2] × 50 = 23864 square centimeter ≈ 240 square decimeter
2. It is to find the side area of the cylinder
3.14 × 9 × 15 × 2 / 5 = 169.56 square cm ≈ 170 square cm
(if there is a picture of this problem, do you want to see if it is 2 / 5 high or 3 / 5 high)

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If | x | = 0.19, | y | = 0.99, and X of Y

X of Y