Estimation and Reasonableness
ISEE Upper Level Quantitative Reasoning · Flashcards
ISEE UPPER LEVEL QUANTITATIVE REASONING · FLASHCARDS
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QUESTION
Identify the reasonable estimate for
0.02
×
300
0.02 \times 300
0.02
×
300
:
0.6
0.6
0.6
,
6
6
6
, or
60
60
60
?
QUESTION
Identify the reasonable estimate for
5000
0.5
\frac{5000}{0.5}
0.5
5000
:
2500
2500
2500
,
10,000
10{,}000
10
,
000
, or
100,000
100{,}000
100
,
000
?
QUESTION
What is the closest estimate of
51
98
\frac{51}{98}
98
51
using a benchmark fraction?
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ANSWER
51
98
≈
1
2
\frac{51}{98} \approx \frac{1}{2}
98
51
≈
2
1
. 51/98 simplifies close to 1/2, a benchmark fraction useful for estimating proportions or divisions.
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