Unlocking The Secrets of Math.

Simple Steps To Becoming A Better Mathematician.

Working With Positive and Negative Integers.

(Rule one) when adding integers with like signs, just add the numbers and take that sign. (+7)+(+6)=(+13).

(Rule two)when adding integers with signs that are not alike, subtract the smaller number from the larger one then apply the sign from the larger number to your answer. (+14)+(-8)=(+6).

(Rule Three) When subtracting integers sprinkle Magic Dust on the subtraction sign and the sign of the next number. This will change the Subtraction sign to addition and the sign of the next number to it’s opposite sign. Then use Rule One or Two which ever applies. Rule 1 (+23)-(-17)=? (+23)+(+17)=+40 Rule 2 (+23)-(+17)=? (+23)+(-17)=+6

Working With DecimalsWhen working addition, division and subtraction problems that contain decimals always keep the decimals in vertical alignment.

12.353 37.24 2.01

+31.44 - 31.17 21 42.21

43.793 6.07 -42

21

-21

When multiplying numbers with decimals work the problem then count how many numbers you have to the right of the decimals in your problem. Then counting from the right of your answer insert your decimal in the proper place.

24.3

x 2.11

243

2430

48600

51273 <—> 51.273

Order of operations

When working withnumbers there is a setsequence or order ofoperations. One way toremember this sequenceis by using this memorydevice. Please Excuse My DearAunt Sue.

Parentheses ExponentsMultiplicationDivisionAdditionSubtraction