Envision Topic 11 Test Review

Front

What is addition?

Back

Addition is the process of finding the total or sum by combining two or more numbers.

Front

What is subtraction?

Back

Subtraction is the process of taking one number away from another.

Front

What is the result of 50 + 30?

Back

80

Front

If you have 90 sleds and sell 30, how many sleds do you have left?

Back

60 sleds

Front

What is 94 - 10?

Back

84

Front

What is 70 - 20?

Back

50

Front

What is the relationship between addition and subtraction?

Back

Addition and subtraction are inverse operations; one can be used to check the other.

Front

What does 'mental math' mean?

Back

Mental math refers to solving math problems in your head without using paper or a calculator.

Front

What is a number chart?

Back

A number chart is a visual aid that helps with counting, addition, and subtraction.

Front

What is the sum of 20 and 40?

Back

60