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There are 10 people in a room how many handshakes will be made if each person shakes hands with everybody else once

If 9k + 30 = 57 what is the value of 3k + 10?

1/5 times the product of thrice x and 2y algebraic expressions

Centrifugal force example

The magic of 37

Acronym for the 6 triangle types RIO SEA Right Triangle Isosceles Triangle Obtuse Triangle Scalene. Triangle Equilateral Triangle Acute Triangle

Angle A and Angle C are complementary Angle B and AngleC are complementary Prove Angle A = Angle B

If n is an integer, then prove n^2 + n + 6 is even

Magic squares

Prove P(A’) = 1 - P(A)

Geometric Mean {3, 27} {4, 4, 8, 2}

Find missing value given an average

Mid-range of a number set. This is the mean of the largest and smallest numbers in the set.

Nikola Tesla’s Solfeggio Frequency Math Another fascinating discovery of the Universe. You may or may not have heard of the Solfeggio Frequencies. If not, they are holy musical tones that go back to the Gregorian Monk ages. They are tuned as follows: 174 Hz, 285 Hz, 396 Hz, 417 Hz,…

Melt Math Anxiety using 2 letters

Common core state standards 4.NBT.A.2 - Place value 123,456 place value 123,456,789 place value

Common core state standard 4.NBT.A.1 - place value division 700/70 300/10 900/90

Common core state standard 3.NBT.A.1 - round using place value Example Problem(s): round 34 to the nearest 10 round 45 to the nearest 10 round 148 to the nearest 100 round 351 to the nearest 100

Common Core State Standards 3.OA.A.2 - Quotients as Groups of Objects 6/3 8/2

Common core state standard 3.OA.A.1 - Groups and objects 2 groups of 3 objects each 4 groups of 5 objects each

Common Core State Standard (3.NF.A.3.D) - Compare fractions with matching numerators or deniminators

Common Core State Standards (3.NF.A.3.C) - Whole Numbers as Fractions Express whole numbers as fractions, and recognize fractions that are equivalent to whole numbers. Examples: Express 3 in the form 3 = 3/1; recognize that 6/1 = 6; locate 4/4 and 1 at the same point of a number line…

Common Core State Standards (3.NF.A.3.B) - Recognize and generate simple equivalent fractions Recognize and generate simple equivalent fractions, e.g., 1/2 = 2/4, 4/6 = 2/3. Explain why the fractions are equivalent, e.g., by using a visual fraction model. Timestamps: 00:00 Intro 00:13 Equivalent fractions for 1/4 01:04 Equivalent fractions for…