The average rest is (7+9+9+5+3+9+8+4+9+2)/10 = 65/10 = 6.5.
For example:
Average value: (9-3-11+20-5+6+1+3) ÷ 8+96?
Calculation:
1.5
2. 10
3.- 1 1
16 The number less than -5 is-21; A number greater than -8 times 4 is -4.
The sum of two numbers is-18.9, one of which is -9.5 and the other is -9.4.
Extended data:
Addition (usually indicated by the plus sign "+") is one of the four basic arithmetic operations, and the others are subtraction, multiplication and division. For example, * * * has a combination of three apples and two apples, and * * * counts as five apples. This observation is equivalent to the mathematical expression "3+2 = 5", that is, "3 plus 2 equals 5".
Addition has several important properties. It is interchangeable, which means that the order is not important, it is interrelated, which means that when more than two numbers are added, the order in which the addition is performed is not important. Repeatedly adding 1 is the same as counting; Adding 0 will not change the result. Addition also follows related operations such as subtraction and multiplication.
Reference source: Baidu Encyclopedia-Supplement