Standard Computational Algorithims

Question 0

What is a reciprocal?

Answer 0

Number flipped

7/9 - 9/7

4 - 1/4

Question 1

What is the easiest way to mentally compute 31 x 4 ?

Answer 1

30 x 4 = 120
+
4 x 1 = 4

=

124

Question 2

What percent of 8 is 2

Answer 2

2/8 - 25%

Question 3

To find percent of increase or decrease?

Answer 3

Take the

starting point - denominator

Amount added or subtracted - numerator

&

Divide