Estimating
Using Place Value Patterns
Solving Division Problems
Solving Division Problems with Remainders
Vocab
100
How do you know?
B. Use rounding: 490/70 = 70
100
5,400 ÷ 60 = 90
2,400 ÷ 60 = 40
100
Mrs. Reiss has 264 crayons for her art class of 22 students. How many crayons will each student get if the crayons are divided equally?
12 crayons
100
The carnival committee has purchased 985 small prizes. The prizes are to be divided equally among the 20 game booths.
Each booth gets _______ prizes, and ______ prizes will be left.
49 R 5
100
The answer to a division problem
Quotient
200
How do you know?
C. 100
(Sample reply- estimate 3,000/30=100)
200
Select all the expressions that are equal to 2700 ÷ 30.
A, B, C
200
The cost to rent a lodge for a family reunion is $975. If 65 people attend and pay the same price, how much does each person pay?
$15
200
Shady Rivers summer camp has 188 campers this week. If there are 22 campers to each cabin, what is the least number of cabins needed?
A. 7 cabins C. 9 cabins
B. 8 cabins D. 10 cabins
How do you know?
C. 9 cabins
188/22= 8 cabins R 12 campers. Since 12 more campers need cabins, a 9th cabin is necessary.
200
The number in a division problem that goes underneath the division symbol
Dividend
300
The area of a rectangular banquet hall is 7,400 square feet. The length of one side of the hall is 82 feet. Explain how you can use compatible numbers to estimate the width of the hall.
HINT: Area= length x width
Ex: 7200/80=90 ft
300
420/6=70
420/60=7
4,200/6=700
4,200/70=60
300
Charles burns 4,350 calories hiking15 miles of the Appalachian Trail. How many calories does he burn each mile?
Part A: A. 4,350/15
Part B: 290 calories
300
247 divided by 11
22 r5
300
The number that is on the outside of a division problem, the number you are dividing by
Divisor
400
Use compatible numbers to estimate
379 ÷ 58
360 ÷ 60 = 6
400
72,000 ÷ 8
9,000
400
Nathan works the same number of hours each day, 5 days each week. He earns $12 per hour. Last week he earned $420. How many hours did he work each day last week?
7 hours per day
400
Ivan uses 30 craft sticks to make each toy cabin. He has a box of 342 craft sticks. How many toy cabins can Ivan make? How many sticks will be left?
11 cabins with 12 sticks left over
400
The part that is left when you divide into equal groups is called the
remainder
500
Use compatible number to estimate
613 ÷ 93
630 ÷ 90 = 7
500
144,000 ÷ 6
24,000
500
Jessie made 312 mini energy bars. She puts 24 bars in each bag. She plans to sell each bag for $6. How many bags can she sell? How much money will she make?
13 bags, $78
500
5,825 divided by 42
138 r 29
500
One way to estimate the answer to a division problem is to replace the divisor and the dividend with
Compatible numbers