Study

Review cuối kỳ II lớp 4

  •   0%
  •  0     0     0

  • The average of 2 numbers is 294, one number is 145; what is the other number?
    294 x 2 -145 = 443
  • 1/2 , 3/5 , 5/4 , 4/3
  • Caculate: 23 x 8 x 25
    4600
  • The sum of two numbers is 40, and their difference is 10. Find the product of these numbers.
    25 & 15
  • Round number 3617 to the nearest hundreds
    3600
  • Round 14125 to the nearest thousands
    14000
  • 7/10
  • Which operation has the smallest value? _________ [A. 140 x 10] ____ [B. 125 x 8] ____ [C. 120 x 12] ____ [D. 130 x 14]
    B
  • The mean of 3 numbers is 202. Two of them are 197 and 201. Find the other number.
    202 x 3 - 197 - 201 = 208
  • Find the average: 15, 24, 39
    (15 + 24 + 39) : 3 = 26
  • Find the sum of 6 numbers provided that their average is 54
    54 x 6 = 324
  • 29 + 68 - 54 = 43 => a = 4
  • What is the product of 145 and 3 ?
    145 x 3 = 435
  • Find the mean of the following numbers: 28, 46, 71, 90, 110
    (28 + 46 + 71 + 90 + 110) : 5 = 69
  • 8
  • There are 840 oranges that need to be packed into baskets. Each basket holds 10 oranges. How many baskets are needed?
    840 : 10 = 84
  • Emma has 8 bags, each of them contains 35 chocolate bars. How many chocolate bars does Emma have in total?
    8 x 35 = 280
  • The quotient is 25, the divisor is 10. What is the dividend?
    25 x 10 = 250