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- Video Course
- Video Course Overview - READ FIRST
- General GMAT Strategies - 7 videos (all free)
- Data Sufficiency - 16 videos (all free)
- Arithmetic - 38 videos (some free)
- Powers and Roots - 36 videos (some free)
- Algebra and Equation Solving - 73 videos (some free)
- Word Problems - 48 videos (some free)
- Geometry - 42 videos (some free)
- Integer Properties - 38 videos (some free)
- Statistics - 20 videos (some free)
- Counting - 27 videos (some free)
- Probability - 23 videos (some free)
- Analytical Writing Assessment - 5 videos (all free)
- Reading Comprehension - 10 videos (all free)
- Critical Reasoning - 38 videos (some free)
- Sentence Correction - 70 videos (some free)
- Integrated Reasoning - 17 videos (some free)

- Study Guide
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## Comment on

Squaring Numbers Ending in 5## Does this work if the base is

## Yes. Keep in mind that x² = (

Yes. Keep in mind that x² = (-x)².

For example, 3² = 9, and (-3)² = 9.

Likewise, 35² = (-35)² = 1225, and 65² = (-65)² = 4225

## Sir, How can we Find Last 2

## The last (units) digit is

The last (units) digit is pretty straightforward, but in most cases, the last 2 digits is outside the scope of the GMAT.

## Does this technique is also

## Good question.

Good question.

The answer is no; the technique can't be extended to powers other than 2.

## I think this technique can

## That's correct; the technique

That's correct; the technique works on for numbers ending in 5 (thus the title :-)

## Majestic!

## Indeed :-)

Indeed :-)

## Amazing!

## Add a comment