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Third Grade Number Sense Worksheets and Activities
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Math
Number sense
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Expanded form (3 and 4 digit numbers) - Build
Level
Grade
3rd Grade
Topic
Place value
Expanded form (3 and 4 digit numbers) - Build
Worksheet instructions: Write the numbers in expanded form. For example: 4,151 = 4,000 + 100 + 50 + 1
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Expanded form (3 and 4 digit numbers) - Net
Level
Grade
3rd Grade
Topic
Place value
Expanded form (3 and 4 digit numbers) - Net
Worksheet instructions: Write the numbers in expanded form. For example: 2,348 = 2,000 + 300 + 40 + 8
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Building a 3-digit number - Truck
Level
Grade
3rd Grade
Topic
Place value
Building a 3-digit number - Truck
Worksheet instructions: Build the 3-digit numbers by adding its parts (multiples of ones, ten and one hundred).
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Adding whole tens (missing number) - Monkey
Level
Grade
3rd Grade
Topic
Addition
Adding whole tens (missing number) - Monkey
Worksheet instructions: Find the missing number in each problem.
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Adding whole tens (2 digits) - Boat
Level
Grade
3rd Grade
Topic
Addition
Adding whole tens (2 digits) - Boat
Worksheet instructions: Find the sum for each problem.
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Adding whole tens (2 digits) - Plane
Level
Grade
3rd Grade
Topic
Addition
Adding whole tens (2 digits) - Plane
Worksheet instructions: Find the sum for each problem.
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5-digit number and Place values - Mask
Level
Grade
3rd Grade
Topic
Place value
5-digit number and Place values - Mask
Worksheet instructions: Find the correct place value for each number by cutting the place value cards and pasting each one on top of the correct dotted arrow.
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Build a 5-digit number - Watermelon
Level
Grade
3rd Grade
Topic
Place value
Build a 5-digit number - Watermelon
Worksheet instructions: Write the correct 5-digit number. For example: 70,000 + 4,000 + 600 + 20 + 1 = 74,621
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Build a 5-digit number from the parts - Glossy
Level
Grade
3rd Grade
Topic
Place value
Build a 5-digit number from the parts - Glossy
Worksheet instructions: Write the correct 5-digit number. For example: 21,721 = 20,000 + 1,000 + 700 + 20 + 1
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Find the missing place value (4-digits) - Rabbit
Level
Grade
3rd Grade
Topic
Place value
Find the missing place value (4-digits) - Rabbit
Worksheet instructions: Fill in the missing number in each equation below.
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Build a 4-digit number from the parts - Measure
Level
Grade
3rd Grade
Topic
Place value
Build a 4-digit number from the parts - Measure
Worksheet instructions: Write the correct 4-digit number. For example: 1,721 = 1,000 + 700 + 20 + 1
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Find the missing place value (3-digits) - Teacher
Level
Grade
3rd Grade
Topic
Place value
Find the missing place value (3-digits) - Teacher
Worksheet instructions: Fill in the missing number in each equation below.
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Build a 3-digit number from the parts - Calculator
Level
Grade
3rd Grade
Topic
Place value
Build a 3-digit number from the parts - Calculator
Worksheet instructions: Write the correct 3-digit number. For example: 721 = 700 + 20 + 1
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Add 2-digit numbers (sum under 100) - Bunny
Level
Grade
3rd Grade
Topic
Addition
Add 2-digit numbers (sum under 100) - Bunny
Worksheet instructions: Find the missing numbers in each circle by adding the given numbers. If you find it easy, try to figure out the answers mentally (without writing down the intermediary steps).
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Add 2-digit numbers (sum under 100) - Grapes
Level
Grade
3rd Grade
Topic
Addition
Add 2-digit numbers (sum under 100) - Grapes
Worksheet instructions: Find the missing numbers in each circle by adding the given numbers. If you find it easy, try to figure out the answers mentally (without writing down the intermediary steps).
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Add or subtract within 100 (whole tens) - Snail
Level
Grade
3rd Grade
Topic
Subtraction
Add or subtract within 100 (whole tens) - Snail
Worksheet instructions: Add or subtract to find the missing number for each problem.
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Round to the nearest ten or hundred - Panda
Level
Grade
3rd Grade
Topic
Rounding
Round to the nearest ten or hundred - Panda
Worksheet instructions: Round each of the following 3-digit numbers to the nearest 10 or 100, depending on the underlined digit.
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Round to the nearest hundred - Owl
Level
Grade
3rd Grade
Topic
Rounding
Round to the nearest hundred - Owl
Worksheet instructions: Round each of the 3-digit numbers to the nearest 100.
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Round to the nearest ten (0-1,000) - Smart Lion
Level
Grade
3rd Grade
Topic
Rounding
Round to the nearest ten (0-1,000) - Smart Lion
Worksheet instructions: Round each of the 3-digit numbers to the nearest 10.
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Round to the nearest ten (0-100) - Light bulb
Level
Grade
3rd Grade
Topic
Rounding
Round to the nearest ten (0-100) - Light bulb
Worksheet instructions: Round each of the 2-digit numbers to the nearest ten.
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Hundreds, tens and ones - Idea
Level
Grade
3rd Grade
Topic
Place value
Hundreds, tens and ones - Idea
Worksheet instructions: Determine the value of the underlined digit (hundreds, tens or ones)
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Missing place value (3-digit numbers) - Cat Cheer
Level
Grade
3rd Grade
Topic
Place value
Missing place value (3-digit numbers) - Cat Cheer
Worksheet instructions: Find the missing place value from each 3-digit number below.
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Building a 3-digit number - Slam
Level
Grade
3rd Grade
Topic
Place value
Building a 3-digit number - Slam
Worksheet instructions: Build the 3-digit numbers by adding its parts (multiples of ones, ten and one hundred).
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