Question
Using the front end, estimate the difference of 5430 and 2640.
- 2000
- 3000
- 4000
- 5000
Hint:
Front-end estimation is a particular way of rounding numbers to estimate sums and differences. To use front- end estimation, add or subtract only the numbers in the greatest place value.
The correct answer is: 2000
We have to use frontend estimation to find the difference between 5430 and 2640.
We have 5430 - 2640 = 5000 - 2000 = 3000.
Hence, the correct option is B.
The round off of 5430 is 5000 and round off of 2640 is 2000.
Related Questions to study
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We can also subtract the numbers and then round off
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Sum of prime numbers between 2 and 11 is___________.
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Sum of prime numbers between 2 and 11 is___________.
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Fill the missing number: 6, __, 18, 24, 30.
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9 × 
= 27
According to table of 9.
9 x 1 = 9
9 x 2 = 18
9 x 3 = 27
Therefore, 9 × 3 = 27
The correct option is (c) 3.
9 × = 27
According to table of 9.
9 x 1 = 9
9 x 2 = 18
9 x 3 = 27
Therefore, 9 × 3 = 27
The correct option is (c) 3.
