# MA.3.NSO.2.3

Multiply a one-digit whole number by a multiple of 10, up to 90, or a multiple of 100, up to 900, with procedural reliability.

### Examples

Example: The product of 6 and 70 is 420.

Example: The product of 6 and 300 is 1,800.

### Clarifications

Clarification 1: When multiplying one-digit numbers by multiples of 10 or 100, instruction focuses on methods that are based on place value.
General Information
Subject Area: Mathematics (B.E.S.T.)
Strand: Number Sense and Operations
Status: State Board Approved

## Related Courses

This benchmark is part of these courses.
5012050: Grade Three Mathematics (Specifically in versions: 2014 - 2015, 2015 - 2022, 2022 and beyond (current))
7712040: Access Mathematics Grade 3 (Specifically in versions: 2014 - 2015, 2015 - 2018, 2018 - 2022, 2022 and beyond (current))
5012055: Grade 3 Accelerated Mathematics (Specifically in versions: 2019 - 2022, 2022 and beyond (current))
5012015: Foundational Skills in Mathematics 3-5 (Specifically in versions: 2019 - 2022, 2022 and beyond (current))

## Related Access Points

Alternate version of this benchmark for students with significant cognitive disabilities.
MA.3.NSO.2.AP.3: Explore multiplying a one-digit whole number by 10.

## Related Resources

Vetted resources educators can use to teach the concepts and skills in this benchmark.

## Formative Assessments

Packages of 50:

Students consider the solution to a multiplication problem and explain their thinking.

Type: Formative Assessment

Multiplying by Multiples of Ten:

Students are asked to explain how the knowing the product of nine and three can help in finding the product of nine and 30.

Type: Formative Assessment

Explaining Multiplication Using Multiples of Ten:

Students are asked to explain why, when multiplying by a power of 10, the product has a zero in the ones place.

Type: Formative Assessment

How Are These Two Problems Related?:

Students are asked to consider how using an easier, known fact could help them solve a related multiplication problem with a multiple of 10.

Type: Formative Assessment

## Lesson Plans

In this model-eliciting activity (MEA), students will work together to determine the best bus for a class trip.  Students will be able to decide between several buses with varying capabilities and costs while practicing their application of multiplying one-digit whole numbers by a multiple of ten.

Type: Lesson Plan

In this MEA, students will work in groups to rank books using the following criteria: price, genre, number of pages, reading level and a summary provided for each book. The students must calculate the price for a class set of each book by multiplying each price by 20 students. There is a budget of \$100. Students are then given a new budget and a new criteria and asked to re-evaluate their decision.

Type: Lesson Plan

Peace Love Baseball:

Batter Up!!! Help the Peace Love Baseball Championship find a home!!! In this interactive Model-Eliciting Activity (MEA), the students will successfully multiply one digit whole numbers by multiples of 10. The students will also work collaboratively to express their opinions, while considering those of their peers.

Type: Lesson Plan

Multiply by Multiples of 10 with Number Cubes:

In this lesson students will use various strategies to multiply one-digit numbers by multiples of 10 within the range of 10-90. The strategies will encompass the Distributive, Commutative, and Associative properties, place value, number lines, base-ten blocks, diagrams, hundreds chart. Students will play a game with number cubes to practice this multiplication.

Type: Lesson Plan

## Original Student Tutorials

Multiplying By Multiples of Ten: Part 2 :

Learn to multiply by multiples of ten, in this interactive tutorial!

This is the second tutorial in a two-part series. .

Type: Original Student Tutorial

Multiply By Multiples of Ten: Part 1 :

Learn how to multiply a 1-digit number by ten using a pattern to help you. This interactive tutorial is Part 1 in a two-part series about multiplying by multiples of ten.

Type: Original Student Tutorial

## STEM Lessons - Model Eliciting Activity

Peace Love Baseball:

Batter Up!!! Help the Peace Love Baseball Championship find a home!!! In this interactive Model-Eliciting Activity (MEA), the students will successfully multiply one digit whole numbers by multiples of 10. The students will also work collaboratively to express their opinions, while considering those of their peers.

In this MEA, students will work in groups to rank books using the following criteria: price, genre, number of pages, reading level and a summary provided for each book. The students must calculate the price for a class set of each book by multiplying each price by 20 students. There is a budget of \$100. Students are then given a new budget and a new criteria and asked to re-evaluate their decision.

In this model-eliciting activity (MEA), students will work together to determine the best bus for a class trip.  Students will be able to decide between several buses with varying capabilities and costs while practicing their application of multiplying one-digit whole numbers by a multiple of ten.

## MFAS Formative Assessments

Explaining Multiplication Using Multiples of Ten:

Students are asked to explain why, when multiplying by a power of 10, the product has a zero in the ones place.

How Are These Two Problems Related?:

Students are asked to consider how using an easier, known fact could help them solve a related multiplication problem with a multiple of 10.

Multiplying by Multiples of Ten:

Students are asked to explain how the knowing the product of nine and three can help in finding the product of nine and 30.

Packages of 50:

Students consider the solution to a multiplication problem and explain their thinking.

## Original Student Tutorials Mathematics - Grades K-5

Multiply By Multiples of Ten: Part 1 :

Learn how to multiply a 1-digit number by ten using a pattern to help you. This interactive tutorial is Part 1 in a two-part series about multiplying by multiples of ten.

Multiplying By Multiples of Ten: Part 2 :

Learn to multiply by multiples of ten, in this interactive tutorial!

This is the second tutorial in a two-part series. .

## Student Resources

Vetted resources students can use to learn the concepts and skills in this benchmark.

## Original Student Tutorials

Multiplying By Multiples of Ten: Part 2 :

Learn to multiply by multiples of ten, in this interactive tutorial!

This is the second tutorial in a two-part series. .

Type: Original Student Tutorial

Multiply By Multiples of Ten: Part 1 :

Learn how to multiply a 1-digit number by ten using a pattern to help you. This interactive tutorial is Part 1 in a two-part series about multiplying by multiples of ten.

Type: Original Student Tutorial

## Parent Resources

Vetted resources caregivers can use to help students learn the concepts and skills in this benchmark.