3rd Grade Adding and Subtracting Within 1,000 Test with Answer Key (Free PDF)

3rd grade addition and subtraction within 1000 test – Maths PDF

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This 3rd grade addition and subtraction within 1000 test covers adding and subtracting within 1,000 (Common Core 3.NBT.A.2), with a free PDF to print.

Key takeaway: This test helps Grade 3 teachers and parents check whether students can add and subtract within 1,000.

Topic: Adding and Subtracting Within 1,000 (3rd grade)
Content: 10 questions with point values, about 45 minutes
Standards: 3.NBT.A.2
Answers: On a separate page, so you can try every worksheet problem first
Format: Free printable PDF, US Letter, black and white

This test helps Grade 3 teachers and parents check whether students can add and subtract within 1,000. It covers sums and differences, regrouping, blocks, number line jumps, estimating, a mistake to find, and stories.

The test has 10 questions worth 20 points. First, students find sums and differences and use regrouping. Then they read blocks and a number line, and estimate before they solve. Finally, they solve stories about pencils, miles, and cans, find a classmate’s mistake, and find a missing number. Allow 45 minutes for the whole test.

This 20-point test checks adding and subtracting within 1,000 (Common Core 3.NBT.A.2). Work alone, show your steps, and write each answer clearly. You have 45 minutes.

Time and points

About this test

Grade: Grade 3
Chapter: Adding and Subtracting Within 1,000
Standards: 3.NBT.A.2
Time: 45 minutes
Total: 20 points

3rd grade addition and subtraction within 1000 test: questions

1 – Basic sums and differences [2 pts]

First, find each answer.

\(354 + 427\) (1 point)
\(689 – 235\) (1 point)

2 – Regrouping [2 pts]

Next, find each answer.

\(568 + 277\) (1 point)
\(704 – 356\) (1 point)

3 – Sticker blocks [2 pts]

Each block picture shows one child’s stickers.

Then, the pictures show how many stickers Priya and Ethan have.

How many stickers does each child have? (1 point)
How many stickers do they have together? (1 point)

4 – Number line jumps [2 pts]

A student’s jumps from 436.

Write the addition equation shown by the jumps. (1 point)
Find the number where the last jump lands. (1 point)

5 – Estimate and find [2 pts]

Jamie plans to add \(538 + 274\).

Round both numbers to the nearest hundred and give the estimated total. (1 point)
Give the exact total. (1 point)

6 – Pencils sold [2 pts]

First, the school store sold 346 pencils on Monday and 278 pencils on Tuesday. Let p be the number of pencils sold on both days.

Write an equation for p. (1 point)
Solve the equation. (1 point)

7 – Road trip miles [2 pts]

A road trip of 925 miles.

Next, the Garcia family drives 925 miles on a road trip. They have driven 468 miles so far. How many miles are left? Write a number sentence and the answer.

Question 8 and after

8 – Jamal's mistake [2 pts]

Jamal found \(623 – 195\) and wrote 572.

Find the correct difference. (1 point)
Explain the mistake Jamal made. (1 point)

9 – Can collection [3 pts]

Mei’s class collects cans. Week 1: 285 cans. Week 2: 347 cans. The goal is 800 cans.

How many cans did the class collect in two weeks? (1 point)
How many more cans are needed to reach the goal? (1 point)
In Week 3 the class collects 210 cans. Does the class reach the goal? Explain. (1 point)

10 – Unknown numbers [1 pt]

Also, find the missing number: \(?+ 158 = 502\).

Key facts behind this 3rd grade addition and subtraction within 1000 test

Key facts

Within 1,000 means every number and every answer is 1,000 or less.
10 ones make 1 ten and 10 tens make 1 hundred; trading them is called regrouping.
Next, in addition, regroup when a column sum is 10 or more.
In subtraction, regroup when the top digit is smaller than the bottom digit.
Then, check a subtraction by adding the difference to the number subtracted.

Common mistakes with this 3rd grade addition and subtraction within 1000 test

When the top digit is smaller, students subtract the smaller digit from the larger. Instead, regroup first. Then subtract each column.
Also, when finding a classmate’s mistake, students redo the whole problem without naming the error. Compare each column with the work shown, and name the first wrong step.
When finding a missing number, students add the two numbers shown. Instead, use the inverse operation. For example, if ? + 150 = 400, subtract 150 from 400.

Test-taking strategy

Estimate before you solve each problem. Then check that your exact answer is close. As a result, small mistakes are easier to catch.
After every subtraction, add to check. First, add the answer to the number subtracted. Then compare with the start. Also, saying the steps aloud helps you spot a slip.
Parents can help by practicing regrouping with play money. For example, trade ten tens for a hundred. Then check the result once more before moving on.

Download the 3rd grade addition and subtraction within 1000 test as a PDF with the button below and keep it with your notes.

3rd grade addition and subtraction within 1000 test: frequently asked questions

How can students show their work on a story problem?

Write an equation, solve it, and write a sentence with a unit. For example, write the sum, then say how many pencils were sold. A quick estimate also shows careful thinking. Partial credit may be given for a correct setup.

What should a student do if the estimate and the answer are far apart?

Check the work. First, check that you rounded correctly. Then check each column for a missed regroup. If the exact answer is far from the estimate, a mistake is likely. Then check the result once more before moving on.

How do you find a missing number in a subtraction equation?

Use addition. If the equation is 700 – ? = 250, add 250 to the missing number to get 700, so subtract 250 from 700. Then check by putting the number back. In other words, slow and careful work pays off here.

All Grade 3 chapters: Grade 3 math.

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