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Printable Addition Within 100 Worksheets
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Addition within 100
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Adding to complete one hundred (missing addend) - Gamer
Level
Grade
2nd, 3rd, 4th
Topic
Addition
Adding to complete one hundred (missing addend) - Gamer
In this addition worksheet, students "complete the hundred" by finding the missing addend in addition equations where the sum is 100. Students are encouraged to solve these exercises mentally, without writing down intermediate steps. Worksheet instructions: Find the missing number in each equation.
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Adding to complete one hundred (missing addend) - Gaming
Level
Grade
2nd, 3rd, 4th
Topic
Addition
Adding to complete one hundred (missing addend) - Gaming
In this worksheet, students "complete the hundred" by finding the missing addend in addition equations where the sum is 100. Students are encouraged to solve these exercises mentally, without writing down intermediate steps, to build number sense and fluency. Worksheet instructions: Find the missing number in each equation.
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Add 1 & 2-digit numbers (with missing addend) - Guitar
Level
Grade
2nd, 3rd, 4th
Topic
Addition
Add 1 & 2-digit numbers (with missing addend) - Guitar
In this addition worksheet, students practice finding missing addends in problems that combine a 2-digit number with a 1-digit number. The goal is to build fluency and confidence in mental math by solving these problems quickly and accurately. Worksheet instructions: Find the missing number in each equation.
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Add 1 & 2-digit numbers (with missing addend) - Headphone
Level
Grade
2nd, 3rd, 4th
Topic
Addition
Add 1 & 2-digit numbers (with missing addend) - Headphone
In this worksheet, students practice finding missing addends in addition problems that combine a 2-digit number with a 1-digit number. The goal is to build fluency and confidence in mental math by solving these problems quickly and accurately. Worksheet instructions: Find the missing number in each equation.
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Add a 2-digit number and a 1-digit number (missing addend) - Donut
Level
Grade
1st, 2nd, 3rd
Topic
Addition
Add a 2-digit number and a 1-digit number (missing addend) - Donut
In this addition worksheet, students practice finding missing numbers in equations with sums up to 100. This worksheet helps reinforce basic addition skills and boosts mental math abilities. Worksheet instructions: Find the missing number in each problem below (no regrouping needed).
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Add a 2-digit number and a 1-digit number (missing addend) - Strawberry
Level
Grade
1st, 2nd, 3rd
Topic
Addition
Add a 2-digit number and a 1-digit number (missing addend) - Strawberry
In this addition worksheet, students practice finding missing numbers in equations with sums up to 100. This worksheet helps reinforce basic addition skills and boosts mental math abilities. Worksheet instructions: Find the missing number in each problem below (no regrouping needed).
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Find the number to complete the next ten - Search
Level
Grade
1st, 2nd, 3rd
Topic
Addition
Find the number to complete the next ten - Search
In this addition worksheet students practice addition within 100 by finding missing numbers in equations. It reinforces number relationships and place value. Worksheet instructions: Find the missing number in each problem.
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Find the number to complete the next ten - Look
Level
Grade
1st, 2nd, 3rd
Topic
Addition
Find the number to complete the next ten - Look
This addition worksheet helps students practice addition within 100 by finding missing numbers in equations. It reinforces number relationships and place value. Worksheet instructions: Find the missing number in each problem.
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Add 2-digit and 1-digit numbers (with carrying) - Lynx
Level
Grade
2nd, 3rd, 4th
Topic
Addition
Add 2-digit and 1-digit numbers (with carrying) - Lynx
This addition worksheet helps students practice adding 2-digit and 1-digit numbers within 100 (with carrying). Designed to improve mental math skills, it encourages kids to solve problems quickly and accurately through repeated practice. Worksheet instructions: Find the sum for each problem.
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Add 2-digit and 1-digit numbers (with carrying) - Goat
Level
Grade
2nd, 3rd, 4th
Topic
Addition
Add 2-digit and 1-digit numbers (with carrying) - Goat
This addition worksheet helps students practice adding 2-digit and 1-digit numbers (with carrying). Designed to improve mental math skills, it encourages kids to solve problems quickly and accurately through repeated practice. Worksheet instructions: Find the sum for each problem.
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Add 2-digit and 1-digit numbers (with carrying) - Tiger
Level
Grade
2nd, 3rd, 4th
Topic
Addition
Add 2-digit and 1-digit numbers (with carrying) - Tiger
This mental math worksheet helps students practice adding 2-digit and 1-digit numbers with carrying. Designed to improve mental math skills, it encourages kids to solve problems quickly and accurately through repeated practice. Worksheet instructions: Find the sum for each problem.
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Add 2-digit and 1-digit numbers (with carrying) - Reindeer
Level
Grade
2nd, 3rd, 4th
Topic
Addition
Add 2-digit and 1-digit numbers (with carrying) - Reindeer
This addition worksheet helps students practice adding 2-digit and 1-digit numbers with carrying. Designed to improve mental math skills, it encourages kids to solve problems quickly and accurately through repeated practice. Worksheet instructions: Find the sum for each problem.
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Adding whole tens & ones (missing addends) - Monkey
Level
Grade
K, 1st, 2nd
Topic
Place value
Adding whole tens & ones (missing addends) - Monkey
This Place Value worksheet helps students practice adding whole tens and ones by finding the missing addend in each equation, reinforcing their understanding of place value and basic addition skills. Worksheet instructions: Find the missing numbers in each of the given problems.
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Adding whole tens and ones - Giraffe
Level
Grade
K, 1st, 2nd
Topic
Place value
Adding whole tens and ones - Giraffe
This worksheet helps students practice adding whole tens and ones to build their understanding of place value and basic addition skills. Worksheet instructions: Find the sum for each problem.
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Addition word problems - Beach
Level
Grade
1st, 2nd, 3rd
Topic
Addition
Addition word problems - Beach
This word problems worksheet focuses on simple addition. Students are presented with real-life situations where they need to calculate the answers to word problems using addition. Worksheet Instructions: Read each problem carefully, then write your answers in the space provided.
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Addition word problems - Picnic
Level
Grade
1st, 2nd, 3rd
Topic
Addition
Addition word problems - Picnic
This worksheet focuses on simple addition word problems. Students need to focus on solving real-life situations using addition. Worksheet Instructions: Read each problem carefully, then write your answers in the space provided.
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Addition word problems - Cookies
Level
Grade
1st, 2nd, 3rd
Topic
Addition
Addition word problems - Cookies
This word problems worksheet focuses on simple addition. Students need to focus on solving real-life situations using addition. Worksheet Instructions: Read each problem carefully, then write your answers in the space provided.
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Creating Groups of 10 - Fun Blocks
Level
Grade
1st, 2nd
Topic
Base ten blocks
Creating Groups of 10 - Fun Blocks
This worksheet helps kids understand what each digit in a two-digit number means. Worksheet instructions: Draw a circle around each set of 10 blocks. Then, redraw the blocks as sets of ten and write the total number of blocks.
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Regrouping into blocks of 10 - Chess
Level
Grade
1st, 2nd
Topic
Base ten blocks
Regrouping into blocks of 10 - Chess
In this worksheet, the student needs to group the blocks into sets of ten and any leftover ones. This helps kids understand what each digit in a two-digit number means. Worksheet instructions: Draw a circle around each set of 10 blocks. Then, redraw the blocks as sets of ten and write the total number of blocks.
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Regrouping into blocks of 10 - Bicycle
Level
Grade
1st, 2nd
Topic
Base ten blocks
Regrouping into blocks of 10 - Bicycle
In this worksheet, students need to group the blocks into sets of ten and any leftover ones. This helps kids understand what each digit in a two-digit number means. Worksheet instructions: Draw a circle around each set of 10 blocks. Then, redraw the blocks as sets of ten and write the total number of blocks.
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Tens and ones - Decomposing numbers (0-100) - Backpack
Level
Grade
K, 1st
Topic
Addition
Tens and ones - Decomposing numbers (0-100) - Backpack
Worksheet instructions: How many tens and ones? Fill in the missing numbers in the box.
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Fact families - Beach Ball
Level
Grade
1st, 2nd
Topic
Fact families
Fact families - Beach Ball
Worksheet instructions: Complete each fact family by writing 4 facts with the given numbers.
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Fact families - Snake
Level
Grade
1st, 2nd
Topic
Fact families
Fact families - Snake
Worksheet instructions: Complete each fact family by writing 4 facts with the given numbers.
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Add 2-digit numbers (sum under 100) - Bunny
Level
Grade
2nd, 3rd, 4th
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
2nd, 3rd, 4th
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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