Examples for 8th grade

Number of problems found: 2980

  • Expressions
    equation Expression (3a-7).(3a+7) is identical with: ?
  • Reciprocal
    rec_gamma What is the reciprocal of the sum of the reciprocals of 4 and 9?
  • Compare II
    powers Which of the numbers 710, 107 is greater?
  • Simple equation 6
    eq1_9 Solve equation with one variable: X/2+X/3+X/4=X+4
  • Six years
    children_9 In six years, Jan will be twice as old as he was six years ago. How old is he?
  • Equation with x
    eq2_3 Solve the following equation: 2x- (8x + 1) - (x + 2) / 5 = 9
  • Possible combinations - word
    dices2 How many ways can the letters F, A, I, R be arranged?
  • Sum of dividend
    numberline_11 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
    camp The owner of the campsite offers 79 places in 22 cabins. How many of them are triple and quadruple?
  • First man
    workers_7 What is the likelihood of a random event where are five men and seven women first will leave the man?
  • Simply equation
    img_reci Solve this equation for x: ?
  • Equation
    rovnice_3 Solve the equation: 1/2-2/8 = 1/10; Write the result as a decimal number.
  • Triangle
    eq_triangle Can an equilateral triangle have a right angle?
  • The hockey
    hokej The hockey player scored 6 goals from 15 shots. How many % was he successful?
  • Midpoint 6
    segment_5 FM=8a+1, FG=42, a=? Point M is the midpoint of FG. Find unknown a.
  • Numbers
    primes Write smallest three-digit number, which in division 5 and 7 gives the rest 2.
  • 9-gon
    9gon Sum of interiol angles of 9-gon is:
  • Class
    children_2 In a class are 32 pupils. Of these are 8 boys. What percentage of girls are in the class?
  • Reciprocal equation
    img_reci_1 Determine the root of the equation: 9/x-7/x=1
  • Percentage increase
    percent_31 Increase number 400 by 3.5%

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