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2nd Grade Three Digit Addition & Subtraction Worksheets

2nd Grade Three-Digit Addition & Subtraction: add and subtract within 1,000 and add or subtract 10 and 100 mentally. Every worksheet is free, prints as a PDF with an answer key, and can be assigned online. The ones teachers open most are first.

← All 2nd grade topics 2.NBT.7 2.NBT.8

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2nd Grade Three Digit Addition & Subtraction Worksheets - Adding Within 1,000 worksheet

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Adding Within 1,000

2nbt7

Student objectives

Add two numbers up to 1,000 to find the total.
Use carrying (regrouping) when a place value adds to 10 or more.
Add in vertical form using the standard step-by-step method.

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2nd Grade Three Digit Addition & Subtraction Worksheets - 3 Digit Minus 3 Digit worksheet

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3 Digit Minus 3 Digit

2nbt7

Student objectives

Subtract one 3-digit number from another to find the difference.
Line up hundreds, tens, and ones correctly before subtracting.
Use borrowing (regrouping) when the top digit is smaller than the bottom digit in a place.
Subtract accurately across zeros when borrowing is needed.

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2nd Grade Three Digit Addition & Subtraction Worksheets - Solving Mixed Problems within 1000 (+ -) worksheet

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Solving Mixed Problems within 1000 (+ -)

Student objectives

Practice adding and subtracting numbers up to 1,000 accurately.
Decide whether to add or subtract based on the symbols in the problem.
Use regrouping when needed to solve multi-digit addition and subtraction.
Keep digits lined up by place value so the answer makes sense.
Practice finding a missing number in addition and subtraction equations
Get comfortable seeing the unknown in different spots — at the beginning, middle, or end of an equation

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2nd Grade Three Digit Addition & Subtraction Worksheets - Adding-Subtracting 10s and 100s worksheet

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Adding-Subtracting 10s and 100s

2nbt8

Student objectives

Find 10 more or 10 less than a number by changing the tens digit.
Find 100 more or 100 less than a number by changing the hundreds digit.
Use place value to keep the ones digit the same when adding or subtracting tens and hundreds.
Do quick mental math with three-digit numbers without writing out long addition or subtraction.

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2nd Grade Three Digit Addition & Subtraction Worksheets - Multiple Subtrahends worksheet

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Multiple Subtrahends

2nbt7

Student objectives

Subtract two or more numbers from a starting number to find what is left.
Keep track of the running total when subtracting in a sequence of steps.
Solve subtraction word problems that have more than one amount being taken away.

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More 2nd grade topics

Two-Digit Addition & Subtraction 13 Addition & Subtraction Facts Within 20 40 Counting Money 16 Telling Time 9 Addition & Subtraction Word Problems 7 Arrays 3 Place Value & Comparing Numbers 11 Graphs & Line Plots 5 Measuring Length 20 Halves, Thirds & Fourths 1 Skip Counting 8 2D & 3D Shapes 6 Number Lines 4 Even & Odd Numbers 2

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