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# Unit 1: Extending whole number operations

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Let's jump into the world of whole numbers! This unit explores extending operations, where we'll tackle bigger numbers and more complex problems. It's a thrilling adventure into math that builds critical thinking and problem-solving skills. Ready to explore and master new mathematical heights? Let's go!

Unit guides are here! Power up your classroom with engaging strategies, tools, and activities from Khan Academy’s learning experts. PDF

## Estimate addition and subtraction of whole numbers

### Practice

#### Quiz 1

Level up on the above skills and collect up to 240 Mastery points

## Addition and subtraction whole numbers

### Practice

#### Quiz 2

Level up on the above skills and collect up to 160 Mastery points

## Estimate multi-digit multiplication

### Practice

#### Quiz 3

Level up on the above skills and collect up to 240 Mastery points

## Multi-digit multiplication

### Practice

#### Quiz 4

Level up on the above skills and collect up to 320 Mastery points

## Estimate multi-digit division

### Practice

#### Quiz 5

Level up on the above skills and collect up to 240 Mastery points

## Multi-digit division

### Practice

#### Quiz 6

Level up on the above skills and collect up to 160 Mastery points

## Multi-step word problems

### Practice

#### Quiz 7

Level up on the above skills and collect up to 240 Mastery points
Up next for you:

#### Unit test

Level up on all the skills in this unit and collect up to 2,000 Mastery points!
Texas 5th grade math is brought to you with support from the ExxonMobil Foundation logo