Song library

Addition

Addition: Definition: Is finding the total, or sum, by combining two or more numbers. HOW TO: 6 + 12 + 4 = 22 Khan Link: https://www.khanacademy.org/math/arithmetic/arith-review-add-subtract/arith-review-basic-add-subtract/v/basic-addition

Matrices

Matrices Definition: a rectangular array of quantities or expressions in rows and columns that is treated as a single entity and manipulated according to particular rules. an organizational structure in which two or more lines of command, responsibility, or communication may run through the same individual. Khan Link: https://www.khanacademy.org/math/precalculus/precalc-matrices/intro-to-matrices/v/introduction-to-the-matrix

Multiply

Multiply Definition: Mathematical operation performed on a pair of numbers in order to derive a third number called a product. For positive integers, multiplication consists of adding a number (the multiplicand) to itself a specified number of times. HOW TO: 7 x 3 = 7 + 7 + 7 = 21 2 x 1 = 2 3 x 6 = 3 + 3 + 3 + 3 + 3 + 3 = 18 Khan Link: https://www.khanacademy.org/math/arithmetic/arith-review-multiply-divide/arith-review-mult-intro/v/multiplication-as-groups-of-objects

Multiply Double Digits

MULTIPLY DOUBLE DIGITS Multiplying double digit numbers is a quick and easy process. The steps to multiplying double digit numbers are as followed: Multiply the number in the ones place of the bottom number by both digits of the top number. 15 x12<--ones place 30 Write a 0 in the units column below the first product. 15 x12 30 0<--units column Multiply the number in the tens place of the bottom number by both digits of the top number. 15 tens place--> x12 30 150 Add up the two products. 15 x12 30 +150 = 180 https://www.khanacademy.org/math/arithmetic/arith-review-multiply-divide/arith-review-multi-digit-mult/v/multiplying-2-digit-numbers

Subtraction