Vocabulary
Even or Odd
Add
Round and Estimate
100

An ordered set of numbers or objects in which the order helps you predict what comes next.

A. addition

B. estimation

C. patter

C. pattern

100

Is 450 even or odd?

even

100

54 + 4 = 

58

100

Round to the nearest ten:

65

70

200

Which property states that when you add zero to any number, the sum is that number?

Identity Property

200

Is 931 even or odd?

odd

200

    209 + 103 = 

312

200

Round to the nearest hundred:

621

600

300

Which property states that you can add numbers in any order and the sum will remain the same?

Commutative Property

300

Is the sum of 9 and 6 even or odd?

odd

300

56 + 21 + 11 =  

88

300

Round to the nearest ten:

349

350

400

What is the answer to an addition problem called?

The sum

400

True or false:  The sum of two even numbers is always even.

True

400

328 + 127 = 

455

400

Estimate:  43 + 29 = 

70

500

True or False:  To find an estimation you should first add and then round your answer.

False

500

True or False: The sum of one odd and one even number is always even.

False

500

545 + 139 = 

684

500

Estimate:  398 + 212 =

600