Dividing Multiples of 10 and 100
Estimating Quotients
Reasonabless
Models and Symbols
Zeros in the Quotient
100
42,000 / 6
What is 7000
100
Use compatible numbers to estimate the quotient. 545 / 8 = ?
What is 560 / 8 = 70 (overestimate) or 480 / 8 = 6 (underestimate).
100
Ms. Yaqubie has 49 students in her gym class. She is ordering gym supplies. One set of basketballs is enough for 6 students. How many sets of basketballs does she need to order?
What is 8 cases with 1 student left over, so 9 cases.
100
484 divided by 4
What is 121
100

Minji spent $25 on a ring. She paid using $10, $5, and $1 bills. If Elena gave the clerk 8 bills, how many of each bill did she give the clerk?

What is one 10 dollar bill, two 5 dollar bills and five 1 dollar bills.

200
If a Michael rides 200 miles in 5 days and rides the same distance each day, how many miles does Michael ride each day?
What is 40 miles
200
While shopping, Rhiannon's mom bought 7 tacos for the family for lunch. Each taco cost $2.25, including tax. How much change did Rhiannon's mom get from a $20 bill?
What is $4.25
200
Stamati is buying ice chests to hold 144 bottles of lemonade for a picnic. Each ice chest holds 20 bottles. How many ice chests should he buy?
What is 8 chests.
200
759 divided by 3
What is 253.
200
The grandstand at CitiField has 648 seats. There are 6 equal sections. How many seats are in each section?
What is 108 seats.
300
Saturn's average distance from the Sun is 886,000,000 miles. Jupiter's average distance from the Sun is 484,000,000 miles. Which planet's distance from the Sun is greater?
What is Saturn
300
Seven friends collected coats for a clothing drive. The students gathered 61 coats. Each person collected about the same number. About how many coats did each student collect?
What is about 9 coats.
300
Andrew sold 62 tickets to a school concert at $3.95 each. About how much money did he collect for all 62 tickets?
What is about $240 because 60 x 4 = 240.
300
Alexa is starting an art club. She is the only member the first month. She plans to have each member find 2 new members each month. How many members will the club have at the end of 4 months?
What is 15 members.
300
Jason bought a collection of 856 baseball cards for $40. If only 8 cards can fit on one page of an album, how many pages will Jason have to buy?
What is 107 pages.
400
The Theocharidis family has 1,000 minutes per month on their cell phone plan. Mr. Theocharidis used 400 minutes. Mrs. Theocharidis used 440 minutes. Their children, Irene and her brother, divide the remaining minutes equally. How many minutes do the children use per month?
What is 80 minutes each child.
400
The P.S. 193 auditorium has 7 sections. Each section has the same number of seats. The auditorium seats 560 people. How many seats are in each section?
What is 80 seats in each section.
400
Montana needs 100 red beads to make a necklace. She already has 38 red beads. How many more red beads does she need? Write an equation and solve.
What is n + 38 = 100 or 100 - 38 = n Montana needs 62 more red beads.
400
Find the next three numbers in the pattern shown below. 10, 15, 12, 17, 14, . . .
What is 19, 16, 21
400
Angela ran 120 kilometers over a four week period. On average, how many kilometers did she run each week?
What is 30 kilometers.
500
DVD's at the mall are on sale 3 for $25. If 400 DVDs are put on 5 shelves with an equal number on each shelf, how many DVDs are on each shelf?
What is 80 DVDs.
500
Horses are measured in hands. Three hands equal 1 foot. If a horse is about 19 hands high, about how many feet tall is it?
What is 6 feet.
500
Brendan has made 179 carved animals using wood. The animals will be shipped in boxes that hold only 8 animals each. How many boxes will be completely filled? How many animals will be left over?
What is 22 boxes will be completely filled and 3 animals will be left over.
500
The art museum sold 1,770 tickets to the modern art exhibit on Sunday. Each ticket cost $12. The ticket holders were divided into five groups to organize the viewing for that day. How many people were in each group? Write an equation and solve.
What is 1,770 / 5 = n where n = 354 people in each group
500
Victor filled one box with 9 pints of blueberries. He picked 97 pints of blueberries. If Victor filled 10 boxes, how many pints were left for the last box?
What is 7 pints.
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