Test Review

Round to the Nearest 10

100

31

30

200

46

50

300

85

90

400

367

370

500

1478

1480

Round to the Nearest Hundred

100

102

100

200

599

600

300

434

400

400

550

600

500

2567

2600

Associative Property

100

What has the same value at 32 + (16 + 7)

16 + (32 + 7) 

        OR

 7 + (16 + 32)

200

What has the same value as (35 + 25) + 12?

(25 + 12) + 35

       OR

25 + (35 + 12)

300

Which one shows the Associative Property of Addition?

3 + 0 = 3

56 + (13 + 9)

56 + (13 + 9)

400

What has the same value as 800 + (567 + 233)

233 + (800 + 567)

OR

567 + (233 + 800)

500

What is the Associative Property of Addition?

You can group addends in different ways and still get the same sum. 

Reasonable Estimate

100

32 + 71

30 + 70

200

58 + 46

60 + 40

OR

60 + 45

OR

55 + 45

300

289 + 888

290 + 880

OR

300 + 900

400

Add using reasonable numbers.

515 + 54 + 107

520 + 50 + 110= 680

Is your sum reasonable?

500

Bob has 287 pencils. He uses 58 yellow pencils and 12 black pencils. About how many pencils does Bob have left?

300 - 70 = 230

Patterns and Even or Odd

100

Is 5 even or odd?

Odd

200

Is the sum even or odd? 8+9=

Odd

300

What is the next three numbers in the pattern?

3, 6, 9, 12, 

15, 18, 21

400

What is true about the numbers in this pattern?

2, 4, 6, 8, 10

They are all even numbers

 OR

count by 2's.

500

If you have two addends that are odd, will your sum be even or odd? Give an example. 

Even

Example: 3+7=10