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Check out this FREE Grade 3 Number and Operations in Base Ten Trial Lesson!

Special Moves: Castling

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  • Number and Operations in Base Ten
Adding up to 1000: Page 60
Adding up to 1000: Page 60

Adding up to 1000: Page 60

Adding up to 1000: Page 60
Worksheet
Adding up to 1000 with Regrouping: Page 25
Adding up to 1000 with Regrouping: Page 25
Adding up to 1000 with Regrouping: Page 25
Worksheet
Adding up to 1000 Without Regrouping: Page 10
Adding up to 1000 Without Regrouping: Page 10
Adding up to 1000 Without Regrouping: Page 10
Worksheet
Adding up to 1000 with Regrouping: Page 48
Adding up to 1000 with Regrouping: Page 48
Adding up to 1000 with Regrouping: Page 48
Worksheet
Adding up to 1000 Without Regrouping: Page 70
Adding up to 1000 Without Regrouping: Page 70
Adding up to 1000 Without Regrouping: Page 70
Worksheet
Adding up to 1000 Without Regrouping: Page 11
Adding up to 1000 Without Regrouping: Page 11
Adding up to 1000 Without Regrouping: Page 11
Worksheet
Adding up to 1000 Without Regrouping: Page 45
Adding up to 1000 Without Regrouping: Page 45
Adding up to 1000 Without Regrouping: Page 45
Worksheet
Adding up to 1000 with Regrouping: Page 2
Adding up to 1000 with Regrouping: Page 2
Adding up to 1000 with Regrouping: Page 2
Worksheet
Adding up to 1000: Page 27
Adding up to 1000: Page 27

Adding up to 1000: Page 27

Adding up to 1000: Page 27
Worksheet
Subtraction with regrouping worksheet for 3rd grade
Subtraction with regrouping worksheet for 3rd grade

Subtraction with Regrouping for 3rd Grade Worksheet

Kids will have fun mastering subtraction with regrouping with this parachute-themed worksheet! Perfect for 3rd graders, it provides plenty of practice so your child can take to the skies in their math understanding.
Subtraction with Regrouping for 3rd Grade Worksheet
Worksheet
Adding up to 1000: Page 55
Adding up to 1000: Page 55

Adding up to 1000: Page 55

Adding up to 1000: Page 55
Worksheet
Adding up to 1000 with Regrouping: Page 47
Adding up to 1000 with Regrouping: Page 47
Adding up to 1000 with Regrouping: Page 47
Worksheet
Construction Zone Math: Relating Subtraction and Addition Worksheet
Construction Zone Math: Relating Subtraction and Addition Worksheet

Construction Zone Math: Relating Subtraction and Addition Worksheet

Help kids master the concept of solving for missing numbers with subtraction. Use this cute worksheet featuring construction elements and colorful equations. Show them how to subtract to find the missing number, then circle the answer. It'll help them increase their number sense and get ready for algebra.
Construction Zone Math: Relating Subtraction and Addition Worksheet
Worksheet
Adding up to 1000 Without Regrouping: Page 35
Adding up to 1000 Without Regrouping: Page 35
Adding up to 1000 Without Regrouping: Page 35
Worksheet
Adding up to 1000 with Regrouping: Page 53
Adding up to 1000 with Regrouping: Page 53
Adding up to 1000 with Regrouping: Page 53
Worksheet
Adding up to 1000 with Regrouping: Page 35
Adding up to 1000 with Regrouping: Page 35
Adding up to 1000 with Regrouping: Page 35
Worksheet
Adding up to 1000: Page 9
Adding up to 1000: Page 9

Adding up to 1000: Page 9

Adding up to 1000: Page 9
Worksheet
Free addition PDF worksheet for 3rd grade
Free addition PDF worksheet for 3rd grade

Free Addition Worksheet

Perfect for a wintry day, challenge your 3rd grader to compare addition equations and fill in the missing numbers in the PDF. This winter-themed worksheet is sure to bring a smile while your 3rd grader practices their addition skills. Perfect for a blustery day, challenge your child to compare addition equations and complete the missing numbers in the PDF.
Free Addition Worksheet
Worksheet
Adding up to 1000: Page 36
Adding up to 1000: Page 36

Adding up to 1000: Page 36

Adding up to 1000: Page 36
Worksheet
Free Place Value Worksheet for 3rd Grade
Free Place Value Worksheet for 3rd Grade

Free Place Value Worksheet for 3rd Grade

Take place value to new heights with this free 3rd grade worksheet! Your child will use large numbers in the tens of thousands and identify the place value of the underlined digit. Explore sky-high numbers and soar in place value skills!
Free Place Value Worksheet for 3rd Grade
Worksheet
Adding up to 1000 with Regrouping: Page 70
Adding up to 1000 with Regrouping: Page 70
Adding up to 1000 with Regrouping: Page 70
Worksheet
Adding up to 1000: Page 42
Adding up to 1000: Page 42

Adding up to 1000: Page 42

Adding up to 1000: Page 42
Worksheet
Adding up to 1000: Page 48
Adding up to 1000: Page 48

Adding up to 1000: Page 48

Adding up to 1000: Page 48
Worksheet
Adding up to 1000 Without Regrouping: Page 21
Adding up to 1000 Without Regrouping: Page 21
Adding up to 1000 Without Regrouping: Page 21
Worksheet


Number and Operations in Base Ten is a critical component of Grade 3 mathematics and an essential foundation for future math skills. Understanding this concept empowers students to grasp place value, which is crucial for performing various arithmetic operations like addition, subtraction, and average calculations. In Grade 3, students transition from using concrete objects to abstract mathematical reasoning, making it vital for parents and teachers to support and reinforce these skills.

By engaging with Number and Operations in Base Ten, children learn how to manipulate numbers based on their values, fostering a deeper comprehension of how numbers are structured. This knowledge promotes mathematical flexibility and encourages efficient problem-solving strategies. Parents and teachers can facilitate this understanding by providing examples of real-life applications, whether through budgeting, measurement, or sharing.

Moreover, strong foundational skills in this area boost students’ confidence and prepare them for more complex math topics in higher grades. When parents and teachers prioritize the mastery of Number and Operations in Base Ten, they equip students with lifelong mathematical skills, ensuring that they become proficient learners in an increasingly numerically-driven world.