Fluently add and subtract within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction.

Here is a collection of our common core aligned worksheets for core standard **3.NBT.A.2**.

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Practice subtraction with double digits in a vertical format.

Core Standard: **3.NBT.A.2**

Write the number in the blank that makes each equation true.

Core Standard: **3.NBT.A.2**

Complete each function table.

Core Standard: **3.NBT.A.2**

Read the table, then answer the related questions.

Core Standard: **3.NBT.A.2**

Complete each input/output table.

Core Standard: **3.NBT.A.2**

Fill in the missing fact for each fact family.

Core Standard: **3.NBT.A.2**

Finish the fact family for each group of numbers.

Core Standard: **3.NBT.A.2**

Practice basic addition and subtraction facts with this fact family worksheet.

Core Standard: **3.NBT.A.2**

Finish the fact families. Write the missing numbers.

Core Standard: **3.NBT.A.2**

Solve 2-digit subtraction problems.

Core Standard: **3.NBT.A.2**

Estimate, then ï¬nd each difference.

Core Standard: **3.NBT.A.2**

Subtract using regrouping. Color all the cards with the same number as the number written on the card with the bell.

Core Standard: **3.NBT.A.2**

Complete each addition sentence - up to three digits.

Core Standard: **3.NBT.A.2**

Practice subtraction with double digits. The problem do require regrouping.

Core Standard: **3.NBT.A.2**

Practice subtraction with double digits. Some of the problems do require regrouping.

Core Standard: **3.NBT.A.2**

Practice double digit subtraction.

Core Standard: **3.NBT.A.2**

Subtract numbers, then draw a line through three same answers to win the game of tic tac toe.

Core Standard: **3.NBT.A.2**

Professor Hansen has coded some subtraction problems. Use the special symbols from a table to decode the numbers. Then find the difference.

Core Standard: **3.NBT.A.2**

practice 4- digit subtraction ( with/without regrouping) and compare each difference using symbols.

Core Standard: **3.NBT.A.2**

Practice finding the difference.

Core Standard: **3.NBT.A.2**

Practice subtraction of 3- and 4- digit numbers.

Core Standard: **3.NBT.A.2**

Subtract three and four digit numbers across zeros.

Core Standard: **3.NBT.A.2**

Students will find the output for a corresponding input and a given subtraction rule.

Core Standard: **3.NBT.A.2**

Practice adding more than two numbers in a horizontal format.

Core Standard: **3.NBT.A.2**

Use properties of addition to solve problems.

Core Standard: **3.NBT.A.2**

Find missing addends. Then use addition or a related subtraction fact to solve the word problems.

Core Standard: **3.NBT.A.2**

Identify missing addends in addition sentences.

Core Standard: **3.NBT.A.2**

Estimate, then find the sum using place value or mental math.

Core Standard: **3.NBT.A.2**

Sharpen your addition skills by adding three numbers in a horizontal format.

Core Standard: **3.NBT.A.2**

This horizontal addition worksheet allows students to practice adding three numbers.

Core Standard: **3.NBT.A.2**

Practice adding three numbers (up to 100).

Core Standard: **3.NBT.A.2**

Practice adding more than 2 numbers in a horizontal format.

Core Standard: **3.NBT.A.2**

Use addition properties to find each sum.

Core Standard: **3.NBT.A.2**

Estimating sums by using rounding and compatible numbers.

Core Standard: **3.NBT.A.2**

Solve each addition problem using regrouping / carry over.

Core Standard: **3.NBT.A.2**

Shelly Squirrel eats the acorns that have the number 1 in the ones place. Add to find each sum and cross each answer with 1 in the ones place.

Core Standard: **3.NBT.A.2**

Solve addition problems with 3-digit numbers.

Core Standard: **3.NBT.A.2**

Practice adding three and four digit numbers. Some of the problems do require regrouping/carrying.

Core Standard: **3.NBT.A.2**

Practice adding 4- digit numbers to find the sums.

Core Standard: **3.NBT.A.2**

Complete the addition sentences.

Core Standard: **3.NBT.A.2**

Complete each addition sentence by filling in the correct numbers in the blanks.

Core Standard: **3.NBT.A.2**

Compare the sum for each set. Then circle if the equation is true or false.

Core Standard: **3.NBT.A.2**

Which number makes the equation true?

Core Standard: **3.NBT.A.2**