Multiplication and Division

Arrays

An arrangement of objects, pictures, or numbers in columns and rows is called an array. Arrays are useful when we want to represent multiplication concepts. The array below has 4 rows and 3 columns. It can also be described as a 4 by 3 array.

Here is a closer look at how we can use arrays to solve harder math challenges.

Open arrays allow us to multiply and divide BIG numbers quickly and easily.

What is Multiplication?

https://www.mathsisfun.com/definitions/multiplication.html

long multiplication

CLick the links below for tutorials that teach you how to do long multiplication!

https://www.mathsisfun.com/numbers/multiplication-long.html

https://www.splashlearn.com/math-vocabulary/multiplication/long-multiplication

long division

Hey! Who wants to play some multiplication games?!

WE ALL DO!!

Hit these links for some fun math games using multiplication and division skills to win!

5 Step Multiplication- a game to learn an organized way to memorize times tables to 12x12 bit.ly/5stepmultiplication
Learn how to use products and factors- bit.ly/productandfactorgame
How Close to 100- bit.ly/howcloseto100
Multiplication Squares- http://bit.ly/2HtOnyz

Understand division IXL

G.1Divide by counting equal groups
G.2Write division sentences for groups
G.3Relate multiplication and division for groups
G.4Write division sentences for arrays
G.5Relate multiplication and division for arrays
G.6Relate multiplication and division
G.7Divide using arrays
G.8Divide using area models
G.9Divide using repeated subtraction
G.10Divide using the distributive property

Division

UNDERSTAND Multiplication IXL

E.1Multiplication facts up to 10
E.2Multiplication facts up to 10: find the missing factor
E.3Choose the multiples of a given number up to 12
E.4Choose numbers with a particular product
E.5Identify factors
E.6Find all the factor pairs of a number
E.7Prime factorization
E.8Multiply 1-digit numbers by teen numbers using grids
E.9Multiply 1-digit numbers by 2-digit numbers using area models I
E.10Multiply 1-digit numbers by 2-digit numbers using area models II
E.11Multiply 1-digit numbers by 2-digit numbers
E.12Multiply 1-digit numbers by 2-digit numbers: word problems
E.13Multiply 1-digit numbers by 3-digit numbers using area models I
E.14Multiply 1-digit numbers by 3-digit numbers using area models II
E.15Multiply 1-digit numbers by 3-digit numbers using expanded form
E.16Multiply 1-digit numbers by multi-digit numbers using partial products
E.17Multiply 1-digit numbers by 3-digit numbers
E.18Multiply 1-digit numbers by larger numbers
E.19Multiply by 10 or 100
E.20Multiplication patterns over increasing place values
E.21Properties of multiplication
E.22Distributive property: find the missing factor
E.23Multiply using the distributive property
E.24Use one multiplication fact to complete another
E.25Estimate products: multiply by 1-digit numbers
E.26Estimate products: multiply by larger numbers
E.27Estimate products: word problems
E.28Estimate products word problems: identify reasonable answers
E.29Multiply numbers ending in zeroes
E.30Multiply numbers ending in zeroes: word problems
E.31Multiply three numbers
E.32Multiply three or more numbers: word problems
E.33Inequalities with multiplication

Multiplicative relationships

F.1Compare numbers using multiplication
F.2Compare numbers using multiplication: word problems
F.3Unit rates and equivalent rates