Multiply Without Using Pencil and Paper or a Calculator

question 36

Multiple Choice

Multiply without using pencil and paper or a calculator.

• A) 33,500
• B) 335,000
• C) 1,335
• D) 435
• E) 3,350

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Definitions:

Slope Failure

A phenomenon where a slope collapses due to gravity and other factors such as water saturation, leading to landslides.

Steepness

The measure of how sharp or incline a slope or angle is.

Debris Flows

Rapid, downhill flow of soil and rock fragments containing a large amount of water, which makes the mixture thick and fluid-like.

River Terrace

A flat, bench-like structure along the sides of a valley, formed by the erosion of a river and representing a previous level of the river bed.