Unit 3 Jeopardy

Rounding

100

Round each number to the nearest ten:

35

40

200

Round each number to the nearest 10:

112

110

300

Round each number to the nearest 10:

98

100

400

Round each number to the nearest 100:

543

500

500

Round each number to the nearest 100:

3,649

3,600

True or False/Fill in the Blank

100

Is this equation true or false?

139+141=140+140

True

200

Is this equation true or false?

239-219=232-218

False

300

Fill in the blank:

405+___=600

195

400

Fill in the blank:

900-____=422

478

500

Fill in the blank:

452-123=___-254

583

3 digit addition

100

298+418=?

716

200

109+210=?

319

300

639+219=?

858

400

216+345=?

561

500

792+487=?

1,279

3 digit subtraction

100

237-198=?

39

200

519-238=?

281

300

792-429=?

363

400

434-234=?

200

500

500-219=?

281

Challenge

100

The school had 253. Over winter break, 64 students moved away, but 16 new students moved in.

How many students are now in the school? Show your work.

205 students.

200

Pick any two numbers from this set of numbers to answer the question below:

701     324     213       612

Which two numbers can you add to get closest to 1,000?

701+324

300

The farmer was selling corn at the farmers market. He started the morning with 762 ears of corn. When he was finished selling corn, he was left with 349 ears of corn. How many ears of corn did he sell? Show your work?

413 ears of corn

400

Harry is reading a chapter book that has 432 pages. He has already read 116 pages. How many pages does he have left to read?  

316 pages.

500

A classroom collected 468 pencils for a school supply drive. Later, another class donated 257 more pencils. After that, 389 pencils were given to students in need.

How many pencils are left?

336 pencils were left