# MA.2.NSO.2.2

Identify the number that is ten more, ten less, one hundred more and one hundred less than a given three-digit number.

### Examples

The number 236 is one hundred more than 136 because both numbers have the same digit in the ones and tens place, but differ in the hundreds place by one.
General Information
Subject Area: Mathematics (B.E.S.T.)
Strand: Number Sense and Operations
Status: State Board Approved

## Benchmark Instructional Guide

• NA

### Vertical Alignment

Previous Benchmarks

Next Benchmarks

### Purpose and Instructional Strategies

The purpose of this benchmark is to extend the work done in grade 1 with two-digit numbers to find the number that is 10 more or 10 less, 100 more or 100 less than a given three-digit number.
• Instruction includes encouraging students to use additive reasoning to determine patterns for identifying a number that is 10 more, 10 less, 100 more or 100 less.
• Instruction supports helping students make a connection to the position of a digit within a multi-digit number.
• Instruction includes the use of a hundreds and thousands chart or a number line.
• Instruction is not intended to focus on addition and subtraction strategies.

### Common Misconceptions or Errors

• Students may incorrectly assume ten more, ten less, one hundred more and one hundred less can only be applied to multiples of ten.
• Students may have difficulty determining 10 more or 10 less than a three-digit number, especially when combining tens to make a hundred or decomposing a hundred into tens.
• For example, students may not be able to determine that 10 more than 192 is 202. Utilizing a number line or chart may be helpful in visualizing this.

### Strategies to Support Tiered Instruction

• Instruction includes the use of place value cards, base-ten blocks, and/or a place value chart. Students build a three-digit number using the place value cards and identifies numbers that are 10 more, 10 less, 100 more, and 100 less. Then, students relate the base ten manipulatives to the place value cards.
• For example, using the place value cards for the number 428, build the number. Then, separate your number into expanded form showing 400, 20, and 8. Then, the teacher asks students which value would you change if we were making a number 10 more or 10 less? [20]. The teacher asks, “Which value would you change if we were making a number 100 more or 100 less?” [400]. Create the different numbers that are 10 more, 10 less, 100 more, or 100 less with 428.

• Instruction includes the use of place value cards and base ten blocks, and/or a place value chart. Students build a three-digit number using the cards that has a value of 9 in the tens place. Then, students identify the values of 10 more, 10 less, 100 more, and 100 less. They may have difficulty knowing how to exchange the 10 tens to the next hundred.
• For example, using base ten blocks and place value cards have students build 293. Have students represent 10 more, 10 less, 100 more, and 100 less. Students will need to exchange the 10 tens for 1 hundred when creating 10 more. If students have difficulty, the teacher asks, “How many tens are in 100?” “How many tens in 200?”

Melanie is thinking of a number. Her number is one hundred more than 456. One student found the solution by adding 100 + 456. Use place value cards to show another way to find Melanie's number.

A series of numbers is written below. What is the missing number? Complete the statement to identify how each number changes.
234, 244, 254,__
Each number in the series is ________ more than the previous number.

Repeat the previous task with the following series of numbers:
766,776,786,__,__

### Instructional Items

Instructional Item 1

Determine whether the number in column A is 10 more, 10 less, 100 more or 100 less than the number in column B. Write your response in column C.

*The strategies, tasks and items included in the B1G-M are examples and should not be considered comprehensive.

## Related Courses

This benchmark is part of these courses.
5012040: Mathematics - Grade Two (Specifically in versions: 2014 - 2015, 2015 - 2022, 2022 and beyond (current))
7712030: Access Mathematics Grade 2 (Specifically in versions: 2014 - 2015, 2015 - 2018, 2018 - 2022, 2022 and beyond (current))
5012005: Foundational Skills in Mathematics K-2 (Specifically in versions: 2019 - 2022, 2022 and beyond (current))

## Related Access Points

Alternate version of this benchmark for students with significant cognitive disabilities.
MA.2.NSO.2.AP.2: Identify the number that is ten more or ten less than a given two-digit number.

## Related Resources

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

## Formative Assessments

Subtract 10 Mentally:

Students are given three-digit numbers and asked to mentally subtract 10 from each number.

Type: Formative Assessment

Mentally Subtract 100:

Students are given three-digit numbers and asked to mentally add 100 to each number.

Type: Formative Assessment

Students are given three-digit numbers and asked to mentally add 10 to each number.

Type: Formative Assessment

Students are given three-digit numbers and asked to mentally add 100 to each number.

Type: Formative Assessment

## Lesson Plans

Hop Up, Hop Down- Three-Digit Numbers:

In this lesson, the students will be adding and subtracting 10 or 100 to/from a given three-digit number. The students will recognize patterns that occur and use these patterns to mentally identify the number that is 10 or 100 more or less than a given number.

Type: Lesson Plan

Mental Math Mania:

This is a lesson that will ensure students walk away with the vital skill of mentally finding 10 or 100 more or 10 or 100 less than a given three-digit number. There is a partner game included with a little competition involved.

Type: Lesson Plan

Place Value - 3 Digit Numbers:

Students will decompose numbers by place value and represent them using concrete and pictorial models.

Type: Lesson Plan

Sweet Mental Math:

In this lesson students will learn to use the place value knowledge gained to identify the number that is 10 more, 10 less, 100 more, or 100 less than a given number. This is the continuation of a story found in previous lessons "Sweet Addition and Subtraction"and "Sweet Place Values."

Type: Lesson Plan

Sweet Number Places:

This lesson is a continuation of the Sweet Values CPALMS lesson Resource 46493 and is a different way of teaching place value, with a story that you can continue to use to also teach addition and subtraction to your second graders. In this lesson students will learn to numerically represent numbers in different ways and understand that the three digits in a three-digit number represent amounts of hundreds, tens, and ones.

Type: Lesson Plan

Sweet Values:

This lesson is a different way of teaching place value, with a story that you can continue to use to also teach addition and subtraction to your second graders. In this lesson students will learn to represent numbers in different ways and understand that the three digits in a three-digit number represent amounts of hundreds, tens, and ones.

Type: Lesson Plan

Tic Tac Toe by Tens and Hundreds:

This is an engaging hands-on activity which challenges students as they learn to find 10 or 100 more or less than a given number three-digit number.

Type: Lesson Plan

## Original Student Tutorials

Place Value Party - Part 5: 100 Less:

Learn how to create numbers that are 100 less as you wrap up the place value party in this interactive tutorial.

This is part 1 in five-part series. Click below to view the other tutorials in the series.

Type: Original Student Tutorial

Place Value Party - Part 4:

Find 100 less and 100 more than a given 3-digit number by helping Kaylin and Quinten keep track of the place value party game points in this interactive tutorial.

This is part 1 in five-part series. Click below to view the other tutorials in the series.

Type: Original Student Tutorial

Place Value Party - Part 2:

Find 10 more and 10 less than 3-digit numbers with regrouping to help Kaylin and Quinten keep score at the place value party in this interactive tutorial.

This is part 1 in five-part series. Click below to view the other tutorials in the series.

Type: Original Student Tutorial

Place Value Party - Part 1:

Mr. Mahoney challenges students to solve 10 less and 10 more problems in a place value party planning adventure in this interactive tutorial.

This is part 1 in five-part series. Click below to view the other tutorials in the series.

Type: Original Student Tutorial

Place Value Party - Part 3:

Find the value of 3-digit numbers which are 10 less with regrouping as Kaylin and Quinten keep score at a place value party in this interactive tutorial.

This is part 1 in five-part series. Click below to view the other tutorials in the series.

Type: Original Student Tutorial

One, Ten, and One Hundred More and Less:

This task acts as a bridge between understanding place value and using strategies based on place value for addition and subtraction. Within the classroom context, this activity can be differentiated using numbers that are either simpler or more difficult to manipulate across tens and hundreds.

## MFAS Formative Assessments

Students are given three-digit numbers and asked to mentally add 100 to each number.

Students are given three-digit numbers and asked to mentally add 10 to each number.

Mentally Subtract 100:

Students are given three-digit numbers and asked to mentally add 100 to each number.

Subtract 10 Mentally:

Students are given three-digit numbers and asked to mentally subtract 10 from each number.

## Original Student Tutorials Mathematics - Grades K-5

Place Value Party - Part 1:

Mr. Mahoney challenges students to solve 10 less and 10 more problems in a place value party planning adventure in this interactive tutorial.

This is part 1 in five-part series. Click below to view the other tutorials in the series.

Place Value Party - Part 2:

Find 10 more and 10 less than 3-digit numbers with regrouping to help Kaylin and Quinten keep score at the place value party in this interactive tutorial.

This is part 1 in five-part series. Click below to view the other tutorials in the series.

Place Value Party - Part 3:

Find the value of 3-digit numbers which are 10 less with regrouping as Kaylin and Quinten keep score at a place value party in this interactive tutorial.

This is part 1 in five-part series. Click below to view the other tutorials in the series.

Place Value Party - Part 4:

Find 100 less and 100 more than a given 3-digit number by helping Kaylin and Quinten keep track of the place value party game points in this interactive tutorial.

This is part 1 in five-part series. Click below to view the other tutorials in the series.

Place Value Party - Part 5: 100 Less:

Learn how to create numbers that are 100 less as you wrap up the place value party in this interactive tutorial.

This is part 1 in five-part series. Click below to view the other tutorials in the series.

## Student Resources

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

## Original Student Tutorials

Place Value Party - Part 5: 100 Less:

Learn how to create numbers that are 100 less as you wrap up the place value party in this interactive tutorial.

This is part 1 in five-part series. Click below to view the other tutorials in the series.

Type: Original Student Tutorial

Place Value Party - Part 4:

Find 100 less and 100 more than a given 3-digit number by helping Kaylin and Quinten keep track of the place value party game points in this interactive tutorial.

This is part 1 in five-part series. Click below to view the other tutorials in the series.

Type: Original Student Tutorial

Place Value Party - Part 2:

Find 10 more and 10 less than 3-digit numbers with regrouping to help Kaylin and Quinten keep score at the place value party in this interactive tutorial.

This is part 1 in five-part series. Click below to view the other tutorials in the series.

Type: Original Student Tutorial

Place Value Party - Part 1:

Mr. Mahoney challenges students to solve 10 less and 10 more problems in a place value party planning adventure in this interactive tutorial.

This is part 1 in five-part series. Click below to view the other tutorials in the series.

Type: Original Student Tutorial

Place Value Party - Part 3:

Find the value of 3-digit numbers which are 10 less with regrouping as Kaylin and Quinten keep score at a place value party in this interactive tutorial.

This is part 1 in five-part series. Click below to view the other tutorials in the series.

Type: Original Student Tutorial

One, Ten, and One Hundred More and Less:

This task acts as a bridge between understanding place value and using strategies based on place value for addition and subtraction. Within the classroom context, this activity can be differentiated using numbers that are either simpler or more difficult to manipulate across tens and hundreds.