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Multiples of 10 and 100
Estimating Quotients
Reasonableness
Dividing by 1-digit Divisors
Zeros in the Quotient
100
150 / 3 =
What is 50
100
Estimate the quotient. 162 / 4=
What is 160 / 4= 40
100
Mary has 39 muffins. If each guest will eat 2 muffins, Mary figures she can serve 19 guests. Is her answer reasonable?
What is yes, because 19x2=38.
100
339 / 5=
What is 67 R4
100
7,147 / 7=
What is 1,021
200
2,400 / 4=
What is 600
200
Estimate the quotient. 766 / 8 =
What is 720 / 8 = 90 or 800 / 8=100
200
A wood carver has made 179 carved animals. 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 with 3 animals left over.
200
6,255 / 5=
What is 1,251
200
3,230 / 3=
What is 1,076 R2
300
32,000 / 8 =
What is 4,000
300
Estimate the quotient. $247.80 / 5=
What is $250.00 / 5= $50
300
Bridget sold 62 tickets to a school concert at $3.95 each. About how much money did she collect for all 62 tickets?
What is $240.
300
249/ 7=
What is 35 R4
300
The grandstand at the stadium has 6,480 seats. There are 6 equal sections. How many seats are in each section?
What is 1,080 seats
400
A set of 4,900 DVDs is being shared equally by 7 people. How many DVDs does each person get?
What is 700
400
The international space station takes 644 minutes to orbit Earth 7 times. About how long does each orbit take?
What is 90 minutes (630/7)
400
What is a reasonable estimate of 913 / 4=
What is 225
400
If 283 is divided by 4. where should the first digit of the quotient be placed?
What is it should be in the tens place, because there will be a 0 in the hundreds place since 4 cannot go into 2.
400
Will 2,700 / 3 and 8,100 / 9 both have the same question?
What is yes, they will both equal 900
500
If Kevin writes 850 words in his blog from Monday through Friday, and he writes the same number of words each day, how many words does he write each day?
What is 170 words each day
500
If you want to use compatible numbers to estimate 324 / 6, is it better to use 360 or 300? Explain.
What is it is better to use 300 because it is only 24 away, where 360 is 36 away from the actual number.
500
In a school cafeteria, each table can seat 6 students. There are 50 students who will eat lunch. How many tables are needed to seat the students? Dina says it is 9 tables. Is this reasonable? Explain.
What is yes, it is reasonable because 8 tables will be completely full and the 9th table will have 2 students. No one is left out.
500
The student council has 186 members divided as evenly as possible into 8 committees. How many members are on each committee?
What is 23 members on each committee with 2 committees having 24 members.
500
A prize of $1,100 is being shared equally by 4 students. How much money does each student receive?
What is $275