Rounding & Place Values

Place Values

100

What place value is the italicized number in? 

4

Ones place

200

What place value is the italicized number in?

63

Tens place

300

What place value is the italicized number in?

60

Ones place

400

What place value is the italicized number in? 

84

Tens place

500

What place number is the italicized number in?

457

Hundreds place

Rules of Rounding

100

True or false: to round 45 to the nearest tens place, you have to look at the number in the ones place, 5. 

45

True 

200

If the number is 5 or more, do you round up or down? 

Round up

300

If the number is 4 or less, do you need to round up or down? 

Down 

400

If the number is 0, do you round up or down, or stay the same? 

i.e. 40 rounded to the nearest tens place 

Stays the same 

500

Create a rhyme or saying for the rules of rounding. 

ex: four or less, let it rest. five or more, let it soar! 

Round Tens

100

Round this number to the nearest tens value. 

16

20

200

Round this number to the nearest tens value.

14

10

300

Round this number to the nearest tens place.

49

50

400

Round this number to the nearest tens place. 

80

80

500

Round this number to the nearest tens place.

75

80

Round Hundreds

100

Is 101 closer to 100 or 200? 

100

200

Is 150 closer to 100 or 200? 

200

300

Is 249 closer to 200 or 300? 

200

400

Is 378 closer to 300 or 400? 

400

500

Is 555 closer to 500 or 600? 

600

Round with Decimals

100

Round this number to the nearest ones place. 

1.02

1

200

Round this number to the nearest ones place. 

2.9 

3

300

Round this number to the nearest ones place. 

8.5

9

400

Round this number to the nearest ones place.

3.33

3

500

Round this number to the nearest ones place. 

1.0

1