Introduction to Rounding

Round to Tens Place

100

23

What is 20?

200

55

What is 60?

300

35

What is 40?

400

684

What is 680?

500

309

What is 310?

Round to Hundreds Place

100

763

What is 800?

200

896

What is 900?

300

109

What is 100?

400

290

What is 200?

500

989

What is 1,000?

Rounding to BOTH

100

456 

Hundreds

What is 500?

200

89 

Tens 

What is 90?

300

650

Hundreds

What is 700?

400

7621

Tens

What is 7620?

500

7893

Hundreds 

What is 7900?

Tricky Q's

100

Take your time with it .... 

Round 76 to the nearest tens place and then take away 10. 

What is 70?

200

I am a number. I am 568 rounded to the nearest hundred and then add 100 to me. 

Who is 700? 

300

Potential numbers that can round down to 20... 

What is 21, 22, 23, and 24?

400

I am a number. Round 45 to the tens place, then round 52 to the tens place and add them together to find my number. 

Think very carefully and take your time on this one... 

Who is 100?

500

48 Rounded to nearest ten. Added to 153 rounded to nearest hundred, then take away 50. 

What is 150? 

Rounding to THOUSANDS PLACE

100

7391

What is 7000?

200

4390

What is 4000?

300

1199

What is 1000?

400

7857

What is 8000?

500

991

hint: It's a big number... 

What is 10,000?