Multiply by 10s
Estimate
Double-Digit Multiplication
Multi-step Word Problems
Word Problems
100
50 x 20
1,000
100
Estimate 26 x 35
30 x 40 = 1,200
100
23 x 18
414
100
Sharon practices piano for 2 hours on Mondays and for 1 hour on Wednesday. If she's played for 36 weeks now, how many hours has she practiced?
(1 + 2) x 36 = 108 hours
100

Dr. Booth is a biology professor. He teaches 19 classes each year. He has 32 students in each class. How many total students does he teach?

608 Students

200
50 x 40
2,000
200
If I estimate 26 x 35, will the estimation be greater than or less than the actual product?
greater than
200
46 x 59
2,714
200
Cameron scored 18 points in his first game, 12 points in his second game, and 23 points in his third game. If his dad promised to pay him 25 cents per point, how much money will he have earned so far?
(18 + 12 + 23) x 25 = 1,325 cents or $13.25
200

Use the information below to solve the problem.

The Book Loft's three most popular books are Mary's Lamb, Bees' Knees, and Cat's Meow.

Average Orders of Books per Month

Mary's Lamb..... 55

Bees' Knees....... 60

Cat's Meow....... 92

Each books sells for $15. How much money will the bookstore make in one month?

$3,105

300
68 x 40
2,720
300
If I estimate 56 x 75, will the estimation be greater than or less than the actual product?
greater than
300
42 x 35
1,470
300
A travel agency charges $64 for each bus ticket and $82 for each train ticket. How much does it cost to buy 4 bus tickets and 3 train tickets.
(64 x 4) + (82 x 3) = $502
300

Use the information below to solve the problem.

The Book Loft's three most popular books are Mary's Lamb, Bees' Knees, and Cat's Meow.

Average Orders of Books per Month

Mary's Lamb..... 20

Bees' Knees....... 34

Cat's Meow....... 44

How many copies of all 3 books will the bookstore sell in 1 year?

1,176

400
80 x 76
6,080
400
Estimate 56 x 75
60 x 80 = 4,800
400
67 x 69
4,623
400
Brandon's book sells for $25 each. If he sold 14 on Monday and 23 on Tuesday, how much money did he make?
(14 + 23) x 25 = $925
400

Use the information below to solve the problem.

The Book Loft's three most popular books are Mary's Lamb, Bees' Knees, and Cat's Meow.

Average Orders of Books per Month

Mary's Lamb..... 55

Bees' Knees....... 60

Cat's Meow....... 92

How many copies of Mary’s Lamb would the bookstore sell in 2 years?

1,320

500
89 x 70
6,230
500
Dakota earns $13 an hour coding. If he works 38 hours this week, about how much money will he make?
10 x 40 = $400
500
99 x 99
9,801
500
A bus has 15 rows of seats. Each row has 4 seats. At the first stop, 25 people get on the bus. At the second stop, 3 people get off of the bus, and 12 people get on the bus. How many empty seats are there after the second stop?
(15 x 4) - 25 + 3 - 12 = 26 seats
500

Use the information below to solve the problem.

The Book Loft's three most popular books are Mary's Lamb, Bees' Knees, and Cat's Meow.

Average Orders of Books per Month

Mary's Lamb..... 55

Bees' Knees....... 60

Cat's Meow....... 92

For a period of 3 years, how much less would the total orders of Bees’ Knees be than the total orders of Cat’s Meow?

1,152

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