Addition and Subtraction

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 sum of 124 and 369?

Back

493

Front

What is the expanded form of 428?

Back

400 + 20 + 8 = 428

Front

What is $346 + $298?

Back

$644

Front

What does 200 + 100 + 10 + 40 + 4 + 7 equal?

Back

361

Front

What is 66 + 74?

Back

140

Front

What is a number line?

Back

A number line is a straight line with numbers placed at equal intervals, used to represent numbers visually.

Front

What does 'carry over' mean in addition?

Back

'Carry over' means to move a value from one column to the next when the sum exceeds the base value (like 10 in base 10).

Front

What is a digit?

Back

A digit is any of the ten symbols used to write numbers: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9.