Expression 8

Evaluate this expressions:

a) 5[3 + 4(2.8 - 3)]
b) 5×(8-4)÷4-2

Result

a =  11
b =  3

Solution:

Solution in text a =
Solution in text b =







Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...):

Showing 0 comments:
1st comment
Be the first to comment!
avatar




To solve this example are needed these knowledge from mathematics:

Next similar examples:

  1. With bracket
    expr Calculate (evaluate) simple mathematical expression with a negative numbers and a bracket: 13+15*5-2*(-6)
  2. Expression 1
    plus_minus_mult What is 7+8-(5×2)+5-4+(6×(5-3)+6)-(8+10)-7+6?
  3. Evaluate
    calculator_3 The division of numbers 18 and 6 increase by product of the numbers 156 and 0.001
  4. Milk
    milk_1 Mum bought 16 cartons of milk. One carton of milk weight 0.925 kg. How many weight all purchase?
  5. Wood
    wood_cube Wood cube with edge 11 cm weights 0.753 kg. What weight have 10, 100 and 1000 these cubes?
  6. Product
    complex-colors Result of the product of the numbers 1, 2, 3, 1, 2, 0 is:
  7. Operations
    mechanical_calculator Sum of the numbers 1.01 and 3.35 multiply by the difference of numbers 6.69 and 1.39.
  8. Decimal expansion
    books Calculate: 2 . 1 + 0 . 10 + 7 . 10000 + 4 . 1000 + 6 . 100 + 0 . 100000 =
  9. Juice box
    zeus In the box is 0.3 liters of juice. How many liters of juice contains 3 these boxes?
  10. Find the 6
    pc_smile_1 Find the total cost of 10 computers at $ 2100 each and 7 boxes of diskettes at $12 each
  11. Roman numerals 2+
    rome-italy_1 Add up the number writtens in Roman numerals. Write the results as a roman numbers.
  12. Voting
    vote_2 400 employees cast their votes in a board member election that has only 2 candidates. 120 people vote for candidate A, while half of the remaining voters abstain. How many votes does candidate B receive?
  13. Roman numerals +
    rome-italy Add up the number writtens in Roman numerals. Write the results as a decimal number.
  14. I think number
    hats I think number.When I add 841 to it and subtract 157, I get a number that is 22 greater than 996. What number I thinking?
  15. Flood water
    flooding Flood waters in some US village meant that the homes had to evacuate 364 people. 50 of them stayed at elementary schools, 59 them slept with their friends and others went to relatives. How many people have gone to relatives?
  16. Drive
    school-bus At the bus stop 8 people take out and 10 people take into bus. Next stop 6 take out and 5 take in. On the third stop 6 take out and 3 take in. The bus traveled further with 39 people. How many passengers were originally at the bus?
  17. Addition of Roman numbers
    roman Added together and write as decimal number: XXXIV + MDCCXII