Rounding
Mental Math
Mix up
Numbers
Place Value/Compare Numbers
100

Round 55 to the nearest ten.

60

100

Add 45 + 55.

100

100
Which place value would you round this number to?

1999, why?

Answers Vary 

Best Answer =Thousands

1999 is much closer to 2000 

100

What is the standard form of  Fifty thousand seven hundred thirty six.

50736

100

What is the value of the 8 in the number below?

789

80

200

Round 245 to the nearest hundred.

200

200

Add 570 + 502.

1,072

200

What place value was rounded in this number?

4582 ----4600

hundreds

200

What is the expanded form of 8577?

8000 + 500 + 70 + 7

200

What place is the number 6 located in?

6,790

The thousands place.

300

Round 1,986 to the nearest ten.

1,990

300

25.5 + 20.3?


25 + 20 = 45

.5 + .3 = .8

45.8

300

Kevin saw a shirt for $45 and a pair of shoes for $154. About how much money does Kevin need to purchase both items? (Round to the nearest ten.)

He needs about $200.

300

Kennedy went to Dave and Busters with 178 points on her card. She spent 95 points on playing games. Approximately How many points does she have left on her card?

How would you round these 2 numbers?

178----180

95----100

180-100 =280

She has approximately 80 points left on her card.

300

Fill in the blank with =, <, or >.

2,891 ___ 2,799

2,891 > 2,799

400

Round 5,350 to the nearest hundred.

5,400

400

How can we add 245 + 8 using mental math?

245 + 5 + 3

245 + 5 = 250 

250 + 3 = 253

400

Estimate by rounding to the nearest hundred. 567 + 1,250

1,900

400

How many thousand block would I need to represent

8455?

8

400

Which equation shows  4,567?

a. 400 + 500 + 60 + 7

b. 4,000 + 500 + 60 + 7

c. 4,000 + 50 + 60 + 7

d. 4,000 + 500 + 6 + 7

b. 4,000 + 500 + 60 + 7

500

Round 45,152 to the nearest ten thousand

50,000

500

Add 6,222 + 10,222 

16,444

500

Estimate by rounding to the nearest hundred.

 2,890 - 1,870

2,890 ---2,900

1,870---1,900

2900-1900 = 1,000

500

Which number is greater?

5,555 or 555

5,555

500

What place value is the 6 in 64,300

Ten Thousand