Round the factors the TENS PLACE to estimate the product:
14 x 8
10 x 10=100
100
Ms. Studebaker fed her dog 2 cups of dog food a day for 3 weeks. How much dog food did she use?
2 cups x 21 days = 42 cups in 3 weeks
100
Where did Ms. Studebaker complete her student teaching?
Mrs. Peregoy's class, 2nd grade
200
5.9+13.5
Solve on a place value chart
19.4
200
Two times the difference between 50 and 25
2 x (50-25)
OR
(50-25) x 2
200
Round the factors to the HUNDREDS PLACE to estimate the product:
560 X 99
600 x 100= 60,000
200
The school installed a new fence around the field. Each day they put 15 meters of fence up. It took them 20 days to install the fence. How many meters of fencing did they install?
15m x 20 days= 300 meters
200
What country(countries) has Ms. Studebaker visited?
I don't mean United States (that's where I live).
Japan
Peru
300
3.2-1.5
Solve on place value chart
1.7
300
Write in word form:
(80+5)x26
The sum of 80 and 5 times 26
300
Round the factors to the THOUSANDS PLACE to estimate the product:
1,011 x 2,997
1,000 X 3,000= 3,000,000
300
If it rains 1.25 inches in one day, how much rain will there be after 15 days?
18.75 inches of rain
300
How many students does Ms. Studebaker see in one day of teaching this class?
Take a guess....
103
400
9 tenths plus 8 tenths
Solve on place value chart (You need to regroup)
1.7
400
(5x2) + (4x2)
The sum of 5 twos and 4 twos.
400
What is a reasonable estimate for 5,897 x 99?
6,000 x 100=
600,000
400
What is 4 times the difference of 88 and 80?
4 x (88-80)
4 x 8
32
400
What is the name of Mrs. McCoy's new baby boy?
Matthew
500
16.42 divided by 4
Solve on place value chart
4.105
500
Compare the two expressions:
(40+5) x 4 and 9 x (40 +5)
<
500
What is a reasonable estimate for 49 tens times 36 tens?
50 tens times 40 tens=
500 x 400
200,000
500
What is the sum of 12 and 55, tripled?
(12+63) x 3
75 x 3
225
500
When is Mrs. McCoy returning from Maternity leave?