Estimation
1 digit by multi-digit multipliation
multi-digit by multi-digit multiplication
Basic Multiplication Facts.
Word Problems
100
Estimate 3x47 by rounding to the highest place.
150
100
30 x 2
60
100
80 x 60
4,800
100

6 x 7

42

100

Greenleaf Elementary has 6 fourth grade classrooms, and each classroom has 24 students.  How many students are in the fourth grade at Greenleaf Elementary?

144

200
Estimate 4 x 107 by rounding to the highest place.
400
200
47 x 8 =
376
200
50 x 45 =
2,250
200

8 x 8

64

200

Mrs. Thomley made 47 chocolate chip cookies, and each cookie has 12 chocolate chips. How many chocolate chips did she use?

What is 564

300
Estimate 56 x 82 by rounding to the highest place.
4,800
300
103 x 6 =
618
300
21 x 87 =
1,827
300

8 x 7

56

300

Mrs. Thomley brings prizes for her students each year. She has 24 students and each student earns 9 prizes during the year.  How many prizes did she bring?

216 prizes

400
Estimate 15 x 38 by rounding to the highest place.
800
400
321 x 9
2,889
400
35 x 68 =
2,380
400

9 x 6

54

400

The 876 children at Greenleaf Elementary held a fundraiser to raise money for their school.  Each student ran 32 laps around a track. They earned $1.00 per lap.  How much money did they earn? 

$28,032

500
Estimate 165 x 534 by rounding to the highest place.
100,000
500

4,382 x 7 =

30,674

500

127 x 64 =

8,128

500

12 x 5 

60

500
A girl scout troop sells 425 boxes of Thin Mints and 211 boxes of Caramel de Lites in 1 week. How many boxes of cookies do they sell in 4 weeks?
2,544 boxes of cookies
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