Comparison Problems
What symbol does IS mean?
=
735 x 6 =
4,410
7 x 497=
7 x 500= 3,500
143 x 5
175
471 x 4
400 x 4= 1,600
70 x 4 = 280
1 x 4 = 4
1, 884
What symbol means AS MUCH AS?
x
912 x 6=
5,472
2,213 x 5=
2,000 x 5= 10,000
213 x 4 =
852
$3,439 x 7
$21,000
2,800
210
63
$24,073
Mr. Penny has three times as many pencils as Mrs. Santoro. Mrs. Santoro has 6 pencils. How many pencils do the have all together. Draw a model to solve the problem. (Lines or boxes)
24 pencils-
P - 6
S --- 6 6 6
548 x 3 =
1,644
Mrs. Dorji sells a roll od Bermuda horse hay for $58. She says she will make $174 if she sells 3 rolls. Is this reasonable? Why or why not?
It is reasonable because the 8 tells you to give the 5 a shove. So we round $58 to $60. $60 x 3= $180. $174 is close to $180.
288 x 3 =
864
608 x 6=
3,600
0
48
3,648
Jamie has 3 times as many cards as Rick. Together, they have 20 cards. How many cards does Jamie have?
R __
} 20
J ___ ____ ____
4 x N = 20 N=5 Jamie has 15 cards.
6,767 x 6
40,602
Find TWO numbers the exact number is between.
8 x 684
8 X 600 = 4,800
8 x 700 - 5,600
Ben wants to buy 3 sweaters for $19 each and 2 pais of jeans for $44 each. How much will Ben spend on the clothing?
$145
837 x 9 =
7,200
270
63
7,533
Last month, Andrea trained 3 times as may cats than dogs. If the total number of cats and dogs was 28 animals, how many cats did she train? Draw a model and solve the problem.
C ____ ____ _____
}28
D _____
4 x N= 28 N= 7 She trained 21 cats.
7,676 x 7 =
53,732
Most Americans throw away about 1,365 pounds of trash each year. Is it reasonable to estimate that Americans throw away over 10,000 pounds of trash in 5 years? Explain
No. A reasonable estimate is between 5,000 and 10,000 pounds.
Beth walks her dog 4 times a day. Each time she walks her dog she walks 1,890 yards. How many yards does she walk her dog in 2 days?
15,120 yards
A passenger jet flies at an average speed of 548 miles per hour. At that speed, how many miles does the plane travel in 7 hours?
500 x 7 = 3,500
40 x 7 = 280
8 x 7 = 56
3,836