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# 2.NBT.B.7 Worksheets, Workbooks, Lesson Plans, and Games

#### CCSS.maths.CONTENT.2.NBT.B.7

:
"Add and subtract within 1000, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method. Understand that in adding or subtracting three-digit numbers, one adds or subtracts hundreds and hundreds, tens and tens, ones and ones; and sometimes it is necessary to compose or decompose tens or hundreds."

Our Take:Year three students learn to add and subtract within 1000. When adding and subtracting three-digit numbers using the standard method, students know that they add numbers in the same place value column (for example, adding digits in the hundreds column with other digits in the hundreds column). Students use this understanding of place value when utilizing other addition and subtraction strategies. For example, a child may use visual tools, such as place value blocks or a number line, to help solve problems.

These worksheets, games, and lesson plans can help students practise this Common Core State Standards skill.

## Worksheets

Worksheet
Kids solve addition problems with three-digit addends to move from bubble to bubble on this year three maths worksheet.
Year 3
Maths
Worksheet
3-Digit Subtraction Using Regrouping
Worksheet
3-Digit Subtraction Using Regrouping
Kids try to "catch" the bouncy balls on this year three maths worksheet by solving subtraction problems with three-digit numbers using regrouping.
Year 3
Maths
Worksheet
Tidy Sum 1000
Worksheet
Tidy Sum 1000
Year 3
Maths
Worksheet
Worksheet
Kids solve addition problems with three-digit addends and no regrouping on this year three maths worksheet.
Year 3
Maths
Worksheet
3-Digit Subtraction Coloring
Worksheet
3-Digit Subtraction Coloring
On this year three maths worksheet, kids go from egg to egg solving subtraction problems with three-digit numbers.
Year 3
Maths
Worksheet
Worksheet
Year 3
Maths
Worksheet

## Lesson Plans

Party Leftovers
Lesson plan
Party Leftovers
Planning a party can be exhausting! But even when the party is over, there can be a lot to do. In this lesson, students use subtraction to figure out what’s left at the end of a party.
Year 3
Maths
Lesson plan
Building My maths Fluency
Lesson plan
Building My maths Fluency
Tap into students' metacognitive skills and get them to think about their thinking! This lesson encourages students to pay attention to the strategies they use while supporting maths fluency!
Year 3
Maths
Lesson plan
Lesson plan
Use this lesson to review three-digit addition strategies including base-ten drawings, number lines, and the standard algorithm.
Year 3
Maths
Lesson plan
Composing and Decomposing
Lesson plan
Composing and Decomposing
Use this lesson to introduce composing and decomposing as part of your students’ addition and subtraction toolkits.
Year 3
Maths
Lesson plan
Lesson plan
Give your students a conceptual understanding of three-digit addition with this lesson focused on base-ten blocks and drawings.
Year 3
Maths
Lesson plan
Lesson plan
Use this scaffolded EL support lesson to help students learn the strategy of decomposing three-digit numbers to add their place values. This lesson can be used alone or prior to teaching Composing and Decomposing to students.
Year 3
Maths
Lesson plan

## Workbooks

No workbooks found for this common core node.

## Games

Game
Addition experts, come on down! practise quick-thinking two-digit addition in this educational game that tests off-the-cuff adding skills.
Year 3
Maths
Game
Game
Kids practise addition and subtraction with manipulatives in this silly shopping game.
Year 3
Maths
Game

## Exercises

No exercises found for this common core node.

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