# Examples for 8th grade

#### Number of problems found: 2980

- Expressions

Expression (3a-7).(3a+7) is identical with: ? - Reciprocal

What is the reciprocal of the sum of the reciprocals of 4 and 9? - Compare II

Which of the numbers 7^{10}, 10^{7}is greater? - Simple equation 6

Solve equation with one variable: X/2+X/3+X/4=X+4 - Six years

In six years, Jan will be twice as old as he was six years ago. How old is he? - Equation with x

Solve the following equation: 2x- (8x + 1) - (x + 2) / 5 = 9 - Possible combinations - word

How many ways can the letters F, A, I, R be arranged? - Sum of dividend

If X is divided separately 2.63 and 1.40. And the results of the individual divisions are added to give a result less than X. What is X? - ATC camp

The owner of the campsite offers 79 places in 22 cabins. How many of them are triple and quadruple? - First man

What is the likelihood of a random event where are five men and seven women first will leave the man? - Simply equation

Solve this equation for x: ? - Equation

Solve the equation: 1/2-2/8 = 1/10; Write the result as a decimal number. - Triangle

Can an equilateral triangle have a right angle? - The hockey

The hockey player scored 6 goals from 15 shots. How many % was he successful? - Midpoint 6

FM=8a+1, FG=42, a=? Point M is the midpoint of FG. Find unknown a. - Numbers

Write smallest three-digit number, which in division 5 and 7 gives the rest 2. - 9-gon

Sum of interiol angles of 9-gon is: - Class

In a class are 32 pupils. Of these are 8 boys. What percentage of girls are in the class? - Reciprocal equation

Determine the root of the equation: 9/x-7/x=1 - Percentage increase

Increase number 400 by 3.5%

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