math review

Front

Is 5 + 9 the SAME as 9 + 5?

Back

Yes, this is an example of the Commutative Property of Addition, which states that changing the order of the addends does not change the sum.

Front

Emily says that 12 bananas plus 3 bananas is the same as 10 bananas plus 6 bananas. Is this true?

Back

No, 12 + 3 = 15, but 10 + 6 = 16. They are not the same.

Front

Amanda had 16 popsicles. She gave 7 to her friends. How many does she have left?

Back

Amanda has 9 popsicles left. (16 - 7 = 9)

Front

18 frogs were sitting on a log. 10 frogs jumped off. How many are left?

Back

There are 8 frogs left on the log. (18 - 10 = 8)

Front

Which equation is FALSE? 15=14-1 or 18-4=15-1?

Back

15=14-1 is FALSE because 14 - 1 = 13, not 15.

Front

What is the Commutative Property of Addition?

Back

It states that the order of numbers does not change the sum. For example, 3 + 4 = 4 + 3.

Front

What is subtraction?

Back

Subtraction is taking away a number from another number. For example, 5 - 2 = 3.

Front

What does it mean to 'solve' a math problem?

Back

To find the answer or solution to the problem.

Front

What is an equation?

Back

An equation is a mathematical statement that shows that two expressions are equal, like 2 + 3 = 5.

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.