Chapter 2 Multiply by One Digit

In Chapter 2 students will:

Relate multiplication equations and comparison statement solve problems involving multiplicative comparison & additive comparison
Multiply 10s, 100s, & 1,000s by whole numbers through ten
Estimate products & determine if exact answers to multiplication problems are reasonable
Multiply numbers using the Distributive Property
Use expanded form to multiply a multi-digit number by a 1-digit number
Use place value & partial products to multiply a multi-digit number by a 1-digit number
Use mental math & properties to multiply a multi-digit number by a 1-digit number
Multiply a multi-digit number by a 1-digit number with regrouping
Recognize & solve multi-step problems using equations

Vocabulary:

factor – a number that is multiplied by another number to find a product
product – the answer to a multiplication problem
Distributive Property of Multiplication – the property that states that multiplying a sum by a number that is the same as multiplying each added by the number and them adding the products
ex: 5 x 13 = (5 x 10) + (5 x 3)
partial product – a method of multiplying in which the ones, tens, hundreds, and so on are multiplied separately and then the products are added together
expanded form – a way to write numbers by showing the value of each digit
Associative Property of Multiplication – the property that states that you can group factors in different ways and get the same product
ex: (6 x 10) x 10 = 6 x (10 x 10)
estimate – a number close to an exact amount
round – to replace a number with another number that tells about how many or how much

Chapter 2 videos: