Vocab
An estimate that is greater than the actual number
overestimate
51,046 X 4
204,184
8,432 X 22
185,504
36,000
A theater manage want to sell 34,000 tickets for a play that will have 120 performances. The theater sells 280 tickets for each performance. Does the theater manager reach her goal?
No. They sell 33,600 tickets.
The answer makes sense
reasonable
_____ x 8 = 16,000
2000
______ X 40 = 24,000
600
______ X 200 = 60,000
300
Which 2 digit number when multiplied by itself has a product of 625?
25
To make an approximate calculation
estimate
30,654 x 6
183,924
842 X 19
15,998
You estimate 36 X 99 using the compatible numbers 40 X 100. Is your answer an overestimate or an underestimate?
Find the missing digits.
11_, 2_3
x 5
556,015
1, 0
Used to assist when trading or carrying in addition and subtraction
regrouping
Estimate factors and solve your estimate:
82,005 x 4
320,000
ESTIMATE factors and SOLVE for your ESTIMATE:
6,102 X 65
420,000
162 X 1000
162,000
You use a pair of shoes to measure a distance. The shoes are 11 inches long. The distance is equal to the length of 16 of the shoes. What is the distance?
176 inches
A symbol used to show a number
digit
4607 x 9
41,463
22,954 X 11
716 X 111
79,476
Trail A is 450 miles longer than 2 times the length of Trail B. Trail B is 3295 miles long. How long is Trail A?
7040