2.NBT.6

Front

What is the sum of 52, 32, and 11?

Back

95

Front

What is the sum of 15, 18, and 19?

Back

52

Front

What is the sum of 34, 23, and 17?

Back

74

Front

What is the sum of 10, 48, and 58?

Back

116

Front

What is the sum of 60, 13, and 17?

Back

90

Front

What does 'sum' mean in math?

Back

The total amount resulting from the addition of two or more numbers.

Front

What is addition?

Back

A mathematical operation where two or more numbers are combined to get a total.

Front

What is a number line?

Back

A straight line that represents numbers in order, used to visualize addition and subtraction.

Front

What is the commutative property of addition?

Back

It states that changing the order of the addends does not change the sum (e.g., 2 + 3 = 3 + 2).

Front

What is the associative property of addition?

Back

It states that the way numbers are grouped in addition does not change the sum (e.g., (1 + 2) + 3 = 1 + (2 + 3)).