## Download Adding and Subtracting Numbers within 1000 using Concrete Models Worksheets

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## Definition:

This worksheet teaches adding and subtracting within 1000, using concrete models or drawings based on place value, properties of operations, and/or the relationship between addition and subtraction.

Understand that in adding or subtracting three-digit numbers, one adds or subtracts hundreds and hundreds, tens and tens, ones and ones. Sometimes it is necessary to compose or decompose tens or hundreds before proceeding to the operation.

## Summary:

**NUMBER LINE** – An open number line is very flexible. We can make jumps of one or ten (or more) and easily manipulate it to show their mathematical thinking. When we add, we jump from left to right. But when we subtract, we jump from right to left.

**BASE (10 BLOCKS)** – We draw each number in tens, then count by tens until they go to 100. Then we can start over by counting by 10s again. Not only did this help us add up numbers beyond 100, but it also give us more expense with our base-10 number system.

## Adding and Subtracting Numbers within 1000 using Concrete Models Worksheets

This is a fantastic bundle which includes everything you need to know about Adding and Subtracting Numbers within 1000 using Concrete Models across 17 in-depth pages. These are ready-to-use Common core aligned Grade 2 Math worksheets.

Each ready to use worksheet collection includes 10 activities and an answer guide. Not teaching common core standards? Don’t worry! All our worksheets are completely editable so can be tailored for your curriculum and target audience.

**Resource Examples**

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## Worksheets Activities Included

**Age 6-7** 2nd Grade

- Number Line Subtraction
- Open Number Line
- Color the Rhythm
- Instrument Number Line
- Piano Roll
- Spin, Solve, Color
- Jump with the Beat
- Make 1000
- Playing Guitar
- Base-10