Grade 3 Bridges Unit 3 Test Review

Front

What is subtraction?

Back

Subtraction is the process of taking one number away from another. For example, if you have 10 apples and you give away 3, you have 10 - 3 = 7 apples left.

Front

How do you find the total number of students after some leave and some join?

Back

To find the total number of students, subtract the number of students who left from the original number, then add the number of new students. For example, if there were 363 students, 94 left, and 26 joined, the calculation is 363 - 94 + 26 = 295.

Front

What does it mean to round a number?

Back

Rounding a number means adjusting it to the nearest specified value, such as the nearest ten or hundred. For example, rounding 66 to the nearest ten gives you 70.

Front

How do you round 118 to the nearest ten?

Back

To round 118 to the nearest ten, look at the digit in the ones place (8). Since 8 is 5 or more, round up to 120.

Front

What is the difference between two numbers?

Back

The difference is the result of subtracting one number from another. For example, the difference between 789 and 456 is 789 - 456 = 333.

Front

What is the process to solve a word problem?

Back

1. Read the problem carefully. 2. Identify the numbers involved. 3. Determine what operation to use (addition, subtraction, etc.). 4. Solve the problem step by step.

Front

What is addition?

Back

Addition is the process of combining two or more numbers to find their total. For example, 5 + 3 = 8.

Front

How do you round 566 to the nearest hundred?

Back

To round 566 to the nearest hundred, look at the digit in the tens place (6). Since 6 is 5 or more, round up to 600.

Front

What is a word problem?

Back

A word problem is a mathematical problem that is presented in the form of a story or real-life scenario, requiring interpretation and problem-solving.

Front

What is the total number of books read by the third and fourth graders?

Back

The total number of books read is 456 (third graders) + 789 (fourth graders) = 1245 books.