Math Topic 8 Review

Front

What is subtraction?

Back

Subtraction is the process of taking one number away from another. It shows how much is left after removing a part.

Front

What is the result of 382 - 148?

Back

234

Front

What does it mean to estimate a difference?

Back

Estimating a difference means finding a close value to the actual difference without calculating it exactly.

Front

What is the estimated difference of 765 - 333?

Back

770 - 330 = 440 is a reasonable estimate.

Front

How do you perform mental math for subtraction?

Back

Mental math for subtraction involves breaking down numbers into easier parts to subtract them in your head.

Front

What is the result of 634 - 528?

Back

106

Front

What is a reasonable way to estimate 800 - 300?

Back

800 - 300 = 500 is a reasonable estimate.

Front

What is the term for the number being subtracted in a subtraction problem?

Back

The term is 'subtrahend'.

Front

What is the term for the number from which another number is subtracted?

Back

The term is 'minuend'.

Front

What is the difference between exact and estimated answers?

Back

Exact answers are precise calculations, while estimated answers are close approximations.