1
Multiply
5 x 68
340
Divide:
320 / 8
40
Numbers that are easy to use for mental computation are called ___________.
Compatible numbers
Multiply:
7 x 300 =
2,100
Divide:
2,400 / 6 =
400
Ms.Tetzlaff divides 127 fourth grade students into 4 groups. Write an equation that shows the closest estimate for the number of students in each group.
120 / 4 = 30
Multiply:
6 x 3 x 50
900
What two numbers is the product of 278 x 9 between?
1,800 and 2,700
Jax has 120 inches of string. He cuts the string into 6-inch pieces. How many pieces of string does Jax cut?
20
56,000 steps
Divide:
3,025 / 5
605
Estimate the product:
4 x 3,189
12,000
Estimate the quotient:
1,812 / 3 =
600
Multiply:
20 x 8 x 5 =
800
The local fair had 5,600 people attend over 7 days. If the same number of people attended each day, how many people attended the first day?
800
Adriel read 4,000 pages in 8 months. He read the same number of pages each month. How many pages did Adriel read during the first month?
500 pages.
Milan completes 28 / 7 as part of a division pattern. What are the next two quotients in the pattern?
280 / 7 =
2,800 / 7 =
40
400
Students sell 300 tickets to a school play for $6 each. They collect $1,800 for the tickets. How much would the students collect if they sold 3,000 tickets?
$18,000
There are 918 people standing in line for a ride. Each car on the ride holds 9 people. How many cars are needed for all the people standing in line?
102 cars
The carnival cost $7. The manager sells 225 tickets in one hour. Which of the following best estimates the ticket sales for that hour?
a. It is between $200 and $300
b. It is between $700 and $1,400
c. It is between $1,400 and $2,100
d. It is between $2,100 and $2,800
c. It is between $1,400 and $2,100
Anahi and Rosario each made 5 posters. They used 30 stickers on each poster. How many stickers did Anahi and Rosario use in all?
300 stickers
A football team told 220 tickets to their first game. The team earned $4 for every ticket sold.
a. How much money did the football team earn from the ticket sales?
b. The team earns about the same amount of money each game as they did the first game. Which equation models about how much money the team will earn from ticket sales for all 8 games of their season?
a. $900 x 8 = $7,200
b. $800 x 8 = $6,400
c. $700 x 8 = $5,600
d. $600 x 8 = $4,800
a. $880
b. $900 x 8 = $7,200
Julissa sells glow sticks at the fair. Each glow stick costs $3. She sells 84 glow sticks in one week. Julissa says that her weekly sales are $552. Is this reasonable? Why or why not?
No, that is not reasonable because 3 x $80 = $240 and 3 x $90 = $270 so her weekly sales would be between $240 and $270.
County Line Elementary School split all 345 students into 8 groups. Which equation shows the closest estimate for the number of students in each group?
a. 240 / 8 = 30
b. 320 / 8 = 40
c. 400 / 8 = 50
d. 480 / 8 = 60
b. 320 / 8 = 40
There are 636 people waiting in line for a movie. Each row of the theater can hold 6 people. How many rows are needed for all the people waiting in line?
106 rows