NBT Review 3rd Grade

Front

What is multiplication?

Back

Multiplication is a mathematical operation where a number is added to itself a certain number of times. For example, 3 multiplied by 4 (3 x 4) means adding 3 four times: 3 + 3 + 3 + 3 = 12.

Front

How do you find the total number of items in groups?

Back

To find the total number of items in groups, multiply the number of groups by the number of items in each group. For example, if there are 5 groups of 6 apples, the total is 5 x 6 = 30 apples.

Front

What is addition?

Back

Addition is a mathematical operation where two or more numbers are combined to get a total. For example, 2 + 3 = 5.

Front

What is subtraction?

Back

Subtraction is a mathematical operation where one number is taken away from another. For example, 5 - 2 = 3.

Front

What does 'about' mean in a math problem?

Back

'About' means to estimate or find a close approximation rather than an exact answer.

Front

How do you calculate the number of empty rooms?

Back

To find the number of empty rooms, subtract the number of occupied rooms from the total number of rooms. For example, if there are 700 rooms and 617 are occupied, then 700 - 617 = 83 rooms are empty.

Front

What is the purpose of estimating in math?

Back

Estimating helps to quickly find an approximate answer without calculating the exact number. It is useful for checking if an answer is reasonable.

Front

What is a word problem in math?

Back

A word problem is a mathematical question presented in a narrative form, requiring the reader to extract the necessary information to solve it.

Front

How do you add multiple numbers together?

Back

To add multiple numbers, you can group them in pairs or add them sequentially. For example, to add 2, 3, and 5, you can do (2 + 3) + 5 = 10.

Front

What is the total number of chairs if there are 7 rows with 10 chairs each?

Back

To find the total number of chairs, multiply the number of rows by the number of chairs in each row: 7 x 10 = 70 chairs.