Show:
Word Problems 1
Word Problems 2
Equations
Rounding
Estimate
100
Miranda says that 30 X 26 is greater than 20 X 36. Is she correct?
What is yes
100
The world's fastest drummer can hit the drum 20 times in one second. How many times can the drummer hit the drum in 30 seconds?
What is 600 times
100
40 X 10=
What is 400
100
Round the equation to find the answer. 35 X 42=
What is 40 X 40= 1,600
100
Estimate each product. 27 X 21=
What is 600
200
A company ordered 28 cartons of tape. Each carton contained 24 rolls. What is the best estimate of the total number of rolls of tape ordered?
What is 750
200
Elizabeth is making 20 necklaces. Each necklace has 16 beads. How many beads does she need to make all of the necklaces?
What is 320 beads
200
60 X 20=
What is 1,200
200
Round the equation to answer the question. 53 X 32=
What is 50 X 30= 1,500
200
Estimate the product. 64 X 16=
What is 1,200
300
Felipe wants to keep his insect collection in display cases. Each case can hold 30 insects. How many insects will 20 full display cases hold?
What is 600 insects
300
Elaine is making 11 pinecone wreaths to sell at a fair. She needs 13 pinecones for each wreath. How many pinecones does she need in all?
What is 143
300
60 X 60=
What is 3,600
300
Use rounding to estimate 28 X 19.
What is 30 X 20= 600
300
Estimate each product. 44 X 51=
What is 2,000
400
Don works 18 hours a week at the library. Which shows the best way to use rounding to estimate how many hours Don will work in 52 weeks?
What is A 10 x 50 B 10 X 60 C 20 X 50 D 18 X 60
400
A movie theatre sells 50 tickets for each showing of a movie. They showed the movie 40 times last week. How many tickets did they sell?
What is 2,000 tickets
400
80 X 70=
What is 5, 600
400
Use rounding to estimate 24 X 16.
What is 20 X 20= 40
400
There are 24 rows in an auditorium. Each row has 42 seats. Which is the best estimate of the total number of seats?
What is A 70 B 400 C 500 D 1,000
500
A Virginia opossum can have up to 21 babies at one time. Suppose 10 Virginia opossums had babies all at the same time. How many baby opossums could there be?
What is 210 babies
500
There are 24 schools competing in a cheerleading contest. There are 18 cheerleaders on each team. Which is the best way to use compatible numbers to estimate the number of cheerleaders that are competing?
What is A 20 X 10 B 25 X 20 C 30 X 10 D 30 X 20
500
400 X 30=
What is 12,000
500
Alex wants to use rounding to estimate 31 X 82. Write a number sentence that shows how Alex should round each factor and what the estimated product would be.
What is 30 X 80= 2,400
500
Show how you would use estimation to decide which has the greater product, 39 X 21 or 32 X 32.
What is 32 X 32 has the greater product.