Mathematics games for children to guess numbers

In Guiainfantil.com we have selected a series of mathematical tricks so that children can count on their friends and leave them with their mouths open. They are a series of mathematical riddles and riddles of ideal numbers for primary school children, a great way for them to learn math and practice

In Guiainfantil.com we have selected a series of mathematical tricks so that children can count on their friends and leave them with their mouths open.

They are a series of mathematical riddles and riddles of ideal numbers for primary school children, a great way for them to learn math and practice operations in a simple way and, above all, very fun.

How to guess the number that someone thinks

Guess the number

1. Think a number

2. Add 5

3. Multiply the result by 2

4. What was left is 4

5. The result is divided by 2

6 To what was left, subtract the number you thought

Solution: The result is always 3

Guess the month of birthday and age

1. Ask the child to tell you the number of the month in which he was born, for example: January = 1 , February = 2, April = 4, May = 5.

2. Then ask him to mentally multiply that amount by 2, and add 5 to the result. Después 3. Then tell him to multiply the obtained by 50

4. And now tell him to add his age to everything obtained, and to tell you the result of everything.

5. Now with the sum of everything you must mentally subtract 250

Solution: the result will give you 3 or 4 figures, the two figures on the right are those of age and those on the left are the number of the month of birth.

Guess a number

1. Ask the child to think of a number (for example 20). D 2. Tell him to add a 0 to the right (200)

3. Ask him to subtract that number from the table of 9 (9, 18, 27, 36 ...), for example 18.

4. Tell him say the result out loud = 182

5. To find out what number you thought, the number on the left (18) is added to the number on the right (2), the number you initially thought comes out: the 20.

Guess what shoe size D 1. Tell the child to look at his shoes and keep his size D 2. Tell him to multiply the previous number by 5. P 3. Ask him to add 50.

4. Now multiply by 20.

5. Tell him to add 1015.

6. And subtract the year of his birth.

Solution: The resulting number will have four figures, the first two will correspond to the size of the shoe and the next two to the age of the child.