There are 36 pencils in a box. Tavares Elementary bought 72 boxes. Use rounding to estimate the total number of pencils Tavares Elementary bought.
What is 2800?
100
23 X 20
What is 460?
100
26 X 12
What is 312?
200
7 X 100
What is 700?
200
Estimate:
42 X 53
What is 2,000?
200
Ms. Smith has 15 rows of apple trees. Each row has 36 trees. How many apple trees does she have?
What is 540
200
85 X 20?
What is 1,700?
200
85 X 33
What is 2,805?
300
6 X 700
What is 4,200?
300
Estimate:
66 X 66
What is 4900?
300
About 20 inches of rain falls monthly in a coastal rain forest. About how any inches is that yearly?
What is 240 inches?
300
John bought 23 pairs of shoes for $40 each. What is the total cost of the shoes?
What is $ 920
300
145 X 5
What is 725?
400
475 X 1,000
What is 475,000?
400
John said 79 times 52 is about 400. Is he right?
What is No? It is 4000
400
In the problem 28 x 34, what are the partial products?
600, 240, 80 and 32
400
Sam drove 10 miles each way to go to work. He worked 5 days a week. How many miles did he drive to get to and from work in a year. (1 year = 52 weeks)
What is 5,200?
400
John bought 36 notebooks. Each notebook has 42 pages. Write an expression to estimate the total number of pages in the notebooks.
40 x 40
500
20 x 30 x 40=
What is 24000?
500
200 x 200 =
What is 40,000?
500
A school group is doing volunteer work at a zoo. The animals have to be fed twice a day. The gorillas eat 12 pounds of food at each feeding. How many pounds of food will they eat in 30 days?
What is 720?
500
Jim walks 18 miles, runs 15 miles and swims 6 miles every month. How many miles does he exercise in a year?
What is 468 ?
500
A small pizza has 14 slices of pepperoni and a large pizza has 23 slices of pepperoni. If a company ordered 15 large pizzas and 3 small pizzas, how many slices of pepperoni would be needed to make the pizzas?