There are 9 students skipping rope, leaving 5, and 2 coming again, how many people are skipping rope

It can be obtained from the title.

There are a total of artificial jump ropes.

9 + 2 = 11 people.

A: There are a total of 11 people skipping rope.

Known: There are 9 students, 5 left, 2 came again, and 9-5+2=6 (people) skipping rope, a total of 9+2=11 people skipping rope. The topic is not clear.

You said that there are 9 students who are skipping rope, and 2 students are coming after leaving 5, so there are still 6 students skipping rope. If you want to ask how many people are skipping rope, then all the students who participated in skipping rope have 11 students skipping rope.

9 students jumped rope, left 5, and 2 came, so a total of 11 students participated in skipping, and now 6 people are skipping rope.

Analysis: This problem is calculated by addition and subtraction, from the original number, subtract the departed, and add it again, which is the existing quantity. Columnar calculations.

6 (pcs) A: There are a total of 6 people skipping rope now.

There were 9 students skipping rope, leaving 5 and coming 2, a total of 90, 5, 10, 2, 2, 16 students skipping rope.

This is a simple addition and subtraction calculation, 9-5+2=6 people, a total of 6 people skipping rope.

9 people jumped rope left 5 left 4, 2 more came, and now there are 4 10 2 6 people jumping rope.

At the beginning, 9 students jumped rope, left 5 and left 4, and then came 2.

9-5+2=6, and then a total of 6 people jumped rope.

What is the last question asked, how many people are skipping rope in total? There are a total of nine students, and after leaving 5, there are still four left, and two more are here, so that there are six people left playing, but the question asks how many are there in total, not how many are left, so there are still nine in total.

solution, 9-5+2=6 (pcs).

A: There are 6 skipping ropes in total.

solution, 9-5=4 (pcs).

4+2=6 (pcs).

A: There are a total of 6 students running rope.

9 one 5 ten 2 pcs.

Twenty, four, ten, two.

Two 6 pcs. A: There are a total of 6 students skipping rope.

9-5+2=6.

There were a total of 6 people jumping rope.

Nine minus five, plus two, for a total of six.

9-5+2=6.

Now there are a total of 6 people jumping rope.

I don't like brain teasers.

9 students jumped rope, 5 left, but 2 came again, a total of 9 + 2 = 11 students jumped rope.

There are 27 people in total.

The calculation process of this question is as follows: 9 groups * 3 people group = 27 people.

A: A total of 27 people are skipping rope.

Summary. I'm glad to answer for you, the solution is: 56-1=55 There are 56 people in our class, if each person takes a skipping rope, there is still a root, how many skipping ropes are there in our class?

Glad to answer for you, the solution is: 56-1=55 so there are 55 roots.

Summary. There were eight people who participated in rope skipping, 11 people who jumped high and four people who participated in two at the same time, so there were 15 people in total.

There were eight people who participated in rope skipping, 11 people in high jump, and four people who participated in two at the same time, so how many people participated in the two at the same time.

There were eight people who participated in rope skipping, 11 people who jumped high and four people who participated in two at the same time, so there were 15 people in total.

The method of this question is 11+8-4.

Because he said that there are 4 people who are repeats, then we can subtract 4 repeats, so the answer to this question is equal to 15

Addition is one of the four basic operations, which refers to the calculation of two or more numbers and quantities into one number. The symbol for the expression of addition is the plus sign "+", and when the addition is performed, the items are connected with the plus sign when answering the sail.

Subtraction is one of the four operations, the operation of subtracting another number from a number containing oranges is called subtraction; It is known that the sum of two additions and one of the additions of Gaoqing is known, and the operation of finding the other addition is called subtraction. The symbol for subtraction is "-" read as a minus sign. Qi Lao gripped.

Good good.

One for each person, that's 43, and there are 8 left.

So, a 51 rope.

43+8 51 (root).

A: There are a total of 51 jump ropes.

43 students need 43 1 = 43 jump ropes, so there are a total of 43 + 8 = 51 jump ropes.

Summary. The commutative law of addition is one of the laws of mathematical calculation. Refers to the addition of two additions, the exchange of the position of the additions, and the unchanged.

i.e. a+b=b+a. In the absence of time in space (within three dimensions), the additive commutative law is perfectly correct. Define action b to flip the left face to the top.

Commutative property is a property of binary operations, which means that in an expression that contains more than two commutative operators, the order of operations does not affect the calculated value as long as the operators do not change.

There are two groups of people in our class who participate in rope skipping, one group of 5 people, a group of 9 people, how many people are there.

Hello dear, there are two groups of people in our class to participate in rope skipping, a group of 5 people, a group of 9 people, a total of 5 9 14 people, oh <>

This problem uses a simple addition method, if you have any questions, you can ask me<> addition commutative law is one of the laws of mathematical calculation. Refers to the addition of two additions, the position of the exchange additions, the pin ridge and the invariant. i.e. a+b=b+a.

In the absence of time in space (within three dimensions), the additive commutative law is perfectly correct. Define operation b as flipping the bucket on the left to the top. Commutative law is a property of binary operations, which means that in an expression that contains more than two commutative operators, as long as the operators do not change, the order of operations will not affect the calculated values.