Multiply with "friendly numbers"
Estimate Products
5,6,7,8 or 9 Multiplication
2, 3, or 4 by 1 Multiplication
Word Problems
100

4 x 25

What is 100?

100
The estimate of 18 x 9. (show your work)
What is 180 or 200?
100

11 x 9

What is 99?

100
14 x 3
What is 42?
100
A movie theater has 24 rows of seats, each row has 32 seats. How many seats are in the theater?
What is 768 seats?
200

25 x 4 x 6

What is 600?

200

The estimate of 26 x 6. (show your work)

What is 180?

200

22 x 8

What is 176?

200
354 x 6
What is 2,124?
200
The fourth graders are collecting money for a fundraiser. There are 82 fourth graders and each student collected $54. About how much money did they raise?
What is 80 x 50 = $4,000?
300

25 x 4 x 10

What is 1000?

300

The estimate of 42 x 7. (show your work)

What is 280?

300

62 x 5

What is 310?

300
782 x 5
What is 3,910?
300
The PTO bought 16 maple trees for the courtyard. They are going to put them in rows of 4. They paid $26 for each tree. The PTO paid for the trees with five $100 bills. How much change will the PTO get back?
What is $84? 1) 16 x 26 = $416 2) 5 x 100 = 500 3) 500 - 416 = 84
400

25 x 4 x 200

What is 20,000?

400

The estimate of 256 x 5

What is 1500?

400

98 x 6

What is 588?

400
2,457 x 3
What is 7,371?
400
During a reading contest, the 25 students in Mrs. Miller's class read for 45 minutes each. For the same contest, the 21 students in Mrs. Ross's class read for 48 minutes. There are 4 classes in the fourth grade. How many more minutes did they read than the other class?
What is 117 more minutes? 1) 25 x 45 = 1,125 2) 21 x 48 = 1,008 3) 1,125 - 1,008 = 117
500

25 x 4 x 4800?

What is 480,000?

500

The estimated of 9,152 x 6

What is 54000?

500

6823 x 7 

What is 47761?

500
3,404 x 7
What is 23,828?
500
Mr. Fawl collects baseball cards. There are 48 pages in his collector's album. The first 20 pages have 35 cards organized into 5 rows. The rest of the pages each have 54 cards on them. How many cards are in Mr. Fawl's album?
What is 2,212 cards? 1) 35 x 20 = 700 2) 48 - 20 = 28 3) 54 x 28 = 1,512 4) 1,512 + 700 = 2,212 cards
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