4th grade math

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 adding 4 three times: 4 + 4 + 4 = 12.

Front

What is rounding?

Back

Rounding is the process of adjusting a number to make it simpler but keeping it close to the original value. For example, rounding 6678 to the nearest hundred gives 6700.

Front

What is a right angle?

Back

A right angle is an angle that measures exactly 90 degrees.

Front

What is addition?

Back

Addition is a mathematical operation where two or more numbers are combined to get a total. For example, 90,543 + 6,345 = 96,888.

Front

What is multiplication of a number by 8?

Back

Multiplying a number by 8 means you have that number 8 times. For example, if Valerie has 19 buckets of slime, her cousin has 19 x 8 = 152 buckets.

Front

What is the place value of a digit?

Back

The place value of a digit is its value based on its position in a number. For example, in 6678, the 6 is in the thousands place, so its value is 6000.

Front

What is an acute angle?

Back

An acute angle is an angle that measures less than 90 degrees.

Front

What is an obtuse angle?

Back

An obtuse angle is an angle that measures more than 90 degrees but less than 180 degrees.

Front

What is the sum of two numbers?

Back

The sum is the result of adding two or more numbers together. For example, the sum of 4 and 5 is 9.

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 10 and 4 is 6.