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. Wood
    wood_cube Wood cube with edge 11 cm weights 0.753 kg. What weight have 10, 100 and 1000 these cubes?
  4. Operations
    mechanical_calculator Sum of the numbers 1.01 and 3.35 multiply by the difference of numbers 6.69 and 1.39.
  5. Product
    complex-colors Result of the product of the numbers 1, 2, 3, 1, 2, 0 is:
  6. Orchard
    orchard 9 trees in 5 lines grows in the orchard. How many trees are in the orchard?
  7. Decimal expansion
    books Calculate: 2 . 1 + 0 . 10 + 7 . 10000 + 4 . 1000 + 6 . 100 + 0 . 100000 =
  8. Find the 6
    pc_smile_1 Find the total cost of 10 computers at $ 2100 each and 7 boxes of diskettes at $12 each
  9. If you
    time_10 If you travel to work 22 days and it takes 29.2 minutes, how many minutes will it take to travel to work and back?
  10. Juice box
    zeus In the box is 0.3 liters of juice. How many liters of juice contains 3 these boxes?
  11. Boys and girls
    boys_and_girls In the class are 20 boys and 5-times less girls. How many girls are in the classroom? How many all children are in the class?
  12. Roman numerals 2+
    rome-italy_1 Add up the number writtens in Roman numerals. Write the results as a roman numbers.
  13. Roman numerals 2-
    rome-italy_2 Subtract up the number writtens in Roman numerals. Write the results as a roman numbers.
  14. Roman numerals +
    rome-italy Add up the number writtens in Roman numerals. Write the results as a decimal number.
  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