Quarter 1 4th grade Math Review VA

Front

What is the process to find out how many cookies Nate has after dropping some and receiving more?

Back

To find out how many cookies Nate has now, subtract the number of cookies he dropped (145) from the original amount (300), then add the cookies his mom brought him (123). The calculation is: 300 - 145 + 123 = 278.

Front

What is 6 multiplied by 6?

Back

6 x 6 = 36.

Front

How do you find the least common multiple (LCM) of two numbers?

Back

To find the LCM of two numbers, list the multiples of each number and find the smallest multiple that they both share. For 6 and 8, the LCM is 24.

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 is 5 or more, round up; if it is 4 or less, round down. For $631, it rounds to $600.

Front

What is the greatest common factor (GCF) of two numbers?

Back

The GCF of two numbers is the largest number that divides both of them without leaving a remainder. For 24 and 30, the GCF is 6.

Front

What is subtraction?

Back

Subtraction is the mathematical operation of taking one number away from another.

Front

What is multiplication?

Back

Multiplication is the mathematical operation of combining equal groups of numbers.

Front

What is a multiple?

Back

A multiple of a number is the product of that number and an integer.

Front

What is a factor?

Back

A factor is a number that divides another number without leaving a remainder.

Front

What is the difference between LCM and GCF?

Back

LCM is the smallest multiple that two numbers share, while GCF is the largest factor that divides both numbers.