Mathematical IQ question and answer

quiz game

There are two numbers, the big one and the small one. Their difference is 7, and their quotient is 5. There are two numbers "7" and "5" in both numbers. Can you guess these two numbers?

fast reaction

Tell you: "B+D=A", "b× d = c"; Please work out what the following numbers a, b, c and d stand for according to the above two equations.

A×A=BA

C×C=DC

Hello, teacher.

Old+teacher+you = good.

Teacher+Hello = Ok.

Hello, teacher = OK × OK.

Look carefully, when the Chinese characters in the above formula represent what number, can these three equations be established?

Interesting equation

Fill in the plus sign and minus sign in the number chain below, so that they are all equations with the number 10 1. Can you finish it?

123456789= 10 1

23456789 1= 10 1

3456789 12= 10 1

456789 123= 10 1

56789 1234= 10 1

6789 12345= 10 1

789 123456= 10 1

89 1234567= 10 1

9 12345678= 10 1

Fill in the numbers skillfully

66×55×44-44×33×22=777

99×88×77-66×55×44= 1 1 1

The above two formulas are not equal. Please select six numbers from 0-6 to fill in the formula so that they are all equal. Which number is unsuccessful?

Tian Tian Canal

Add a number to "999" so that the four digits formed can be evenly divided by the four digits "1357". Do you know what this number is? Well, I'm telling you, it's "4", which means "9499". Verification: 9499÷ 1357=7

Add two numbers to "888" to form a five-digit number divisible by "1357". Interestingly, the number is a two-digit number composed of two numbers you fill in.

All right, let's see.

Fill in the numbers wisely

1+2+3=4

Please add the same number to each number in the formula to make it an equation. Can it succeed?

To tell you the truth, adding an "8" to each one can become an equation: 18+28+38=84.

Ok, let's try: add the same number to each number in the following formula so that it is still an equation.

1+2+3+4+5= 15

Fill in as required

□□×□□×□=2040

□×□×□×□=3024

Please fill in the number 1-9 in the blank to make these two equations hold. Can you finish it soon?

Fill in and calculate

Fill in the same operation symbol in "○" and the appropriate number in "□" to make them form an equation. This seems to be a problem, but it is not. It's simple! Just try it.

12○3○45○6○7○8○9=□8□8□8□

answer

Guessing game: large number 8.75, decimal number 1.75.

Find the rule and fill in the number: 2 1875.

Interesting guess of letters: a =1b = 9c = 2d = 3e = 8f = 4g = 5h = 7i = 6 (the answer is not unique).

Interesting equation:123+4+56+7-89 =101.

23+4+5+67-8+9+ 1= 10 1

34+5+67-8-9+ 12= 10 1

45+67-8-9+ 1+2+3= 10 1

67-8-9+ 12+34+5= 10 1

78-9+ 1-2+34+5-6= 10 1

89+ 1+2-3+4-5+6+7= 10 1