Multiples of 10, 100, and 1,000
Estimate Products
Multiply by a Two-Digit Number
Multiply with Regrouping
Estimate or Exact
100

6 × 10 =

60

100

Andre is a football quarterback. He scored 24 points in each of his last 4 football games. About how many total points did he score?

80 points

100

48 × 4=

192

100

145 × 4 =

580

100

Bruce has 4 tomato plants in his garden. Each tomato plant has 13 tomatoes. How many tomatoes does Bruce have? Is an estimate or exact answer needed?

52 tomatoes; exact

200

5 × 500 =

2,500

200

Heather is selling candy bars for her school fundraiser. She sold 176 candy bars each month for 3 months About how many candy bars did she sell?

About 600 candy bars

200

52 x 8=

416

200

231 × 4=

924

200

3,196 campers attend Camp Cypress each month. If the same number of campers go to Camp Cypress each month, about how many campers will go there over 3 months? Is an estimate or exact answer needed? 

About 9,000 campers; estimate

300

4 × 2,000 =

8,000

300

Manny has 8 photo albums. There are 67 pictures in each album. About how many photos does Manny have?

About 560 photos

300

67 × 6=

402

300

415 × 4=

1,660

300

Rita reads 2,104 pages each month. If Rita reads the same number of pages each month, about how many pages will she have read after 3 months? Is an estimate or exact answer needed?

About 6,000 pages; estimate

400

7 × 8,000 =

56,000

400

Bart has 208 model cars. Manny has 3 times as many model cars. About how many model cars does Manny have?

About 600

400

73 x 9=

657

400

1,259 × 5=

6,295

400

There are 4,906 campers that attend Camper Glade each month. 708 camper attend Camp Andrews each month. If the same number of campers go to camp each month. About how many more campers will go to Camp Glade in 2 months than to Camp Andrews in 4 months? Is an estimate or exact answer needed?

7,200 more; estimate

500

6 × 5,000 =

30,000

500

Jen runs 967 minutes a month. About how many minutes will she run in 4 months?

About 4,000 minutes

500

92 x 8=

736

500

2,393 × 5=

11,965

500

Mr. and Mrs. Timko want to buy a car that costs $9,283. Mr. Timko saves $2,405 each month for 3 months. Mrs. Timko saves $892 each month for 3 months. If they combine their money, how much will they have? Will they have enough money to buy the car? Is an estimate or exact answer needed?

$9,891; yes they have enough; exact answer