Estimation and Rounding
There are about 310 passengers in each car of the city train. As there are 8 cars for each train, there are about ________ passengers on each train.
About 2,400
Is the number 62 prime or composite?
Composite
278 x 16
4,448
7/18 + 6/18
13/18
Find the pattern:
2, 11, 9, 18, ____, _____, .....
Add 9, subtract 2
The first bus had 96 passengers and the second bus had 107 passengers. There are about ________ passengers into total.
About 200
Is the number 83 prime or composite?
Prime
4,817 divided by 5
963 R2
96/100 - 45/100
51/100
A pair of jeans costs $89. A jean jacket costs twice as much. What is the total cost of a jean jacket and 4 pairs of jeans?
$534
In the morning, there are about 452 planes taking off from the airport and 127 of the planes are delayed for more than 15 minutes. About ________ planes take off within 15 minutes of the scheduled time.
About 330
What are next 5 multiples of 13?
13, 26, 39, 52, 65...
Jennie makes quilts. She can make 7 quilts with 21 yards of material. How many yards of material would be required to make 12 quilts?
36 yards
Convert the fraction 38/10.
3 4/5
All 3,000 seats in a theater are being replaced. So far, 5 sections of 136 and a sixth section containing 348 seats have been replaced. How many more seats do they still need to replace?
1, 972 seats
The distance between two bus terminals is 390 km. It takes the bus 4 hours to go from one terminal to another. The speed of the bus is about ________ km per hour.
About 100
What are the factors of 18?
1, 2, 3, 6, 9, and 18
On Thursday the Meat King Market sold 210 pounds of ground beef. On Friday they sold twice that amount. On Saturday they only sold 130 pounds. How much more meat did they sell on Friday than Saturday?
290 pounds
Order the fractions from least to greatest.
2 1/3, 1 3/5, 4/5
4/5, 1 3/5, 2 1/3
9 1/3- 2 2/3=
6 2/3
In a city, there are 45,960 electric cars and 96,113 gas cars. There are about ________ more gas cars than electric cars.
About 50,000
Write 5,376 in the following forms.
1. Standard form
2. Expanded form
3. Word form
It must be in this order.
1. 5,376
2. 5,000 + 300 + 70 + 6
3. five thousand three hundred seventy six
Seventy eight students are separated into 8 groups for a field trip. How many students are in each group?
9 students in each group and one group of 6
If each dozen cookies needs 3/4 of a bag of flour to make, how many bags of flour does grandma needs to buy if she is making 10 dozen cookies?
7 1/2, so grandma needs to buy 8 bags of flour.
A rectangular dining room is 9 feet wide and 12 feet long. What is the area of the dining room?
108 sq. ft