4th Grade Math Review

Front

What is expanded form?

Back

Expanded form is a way of writing numbers that shows the value of each digit. For example, 6,789 in expanded form is 6,000 + 700 + 80 + 9.

Front

How do you convert a number into expanded form?

Back

To convert a number into expanded form, break it down by place value. For example, for 4,562, it would be 4,000 + 500 + 60 + 2.

Front

What is the product of 68 and 32?

Back

The product of 68 and 32 is 2,176.

Front

How do you round a number to the nearest hundred?

Back

To round a number to the nearest hundred, look at the tens digit. If it's 5 or more, round up. If it's 4 or less, round down.

Front

Round 39,204 to the hundreds place.

Back

39,204 rounded to the nearest hundred is 39,200.

Front

What is multiplication?

Back

Multiplication is a mathematical operation where a number is added to itself a certain number of times. For example, 4 x 3 means 4 added 3 times (4 + 4 + 4).

Front

What is the product of 55 and 41?

Back

The product of 55 and 41 is 2,255.

Front

What is a place value?

Back

Place value is the value of a digit based on its position in a number. For example, in 5,432, the 5 is in the thousands place, so its value is 5,000.

Front

How do you find the value of a digit in a number?

Back

To find the value of a digit, multiply the digit by its place value. For example, in 3,456, the value of 4 is 4 x 100 = 400.

Front

What is the difference between a product and a sum?

Back

A product is the result of multiplication, while a sum is the result of addition.