Adding and Subtracting Fluently within 1,000

Addition

100

254 + 244 = 

498

200

378 + 133 =

511

300

789 + 456 = 

1,245

400

A soccer match begins at 6:00pm.  At 5:30, 5 players show up.  At 5:40, 6 more players show up.  At 5:50, 2 more players show up.  How many players showed up for the soccer match?

13 players show up

500

The residents of Rexburg own 346 cats.  They own 268 dogs and 37 birds.  

Is the number of dogs and birds together greater than the number of cats? 

Yes, there are 405 dogs and birds compared to only 346 cats.  

Subtraction

100

541-320 = 

221

200

684 - 572 =

92

300

650 - 382 = 

268

400

953 - 486 = 

467

500

Tracy has 302 prize tickets. She trades 237 of the tickets for a stuffed animal and 20 tickets for a drink. How many tickets does Tracy have left?  

45 tickets left

Addition with 3 or more numbers

100

50 + 49 + 67 = 

166

200

356 + 421 + 10 = 

807

300

312 + 466 + 281= 

1,059

400

471 + 502 + 104 = 

1,077

500

Mrs. Lords buys a package of 600 napkins. She uses 335 napkins for family dinners. Then she throws a birthday party and uses another 108 napkins. She uses 12 napkins to clean up a spill. How many napkins does Mrs. Lords have left?

She has 145 napkins left. 

Expanded Numbers

100

Write 423 + 510 in expanded form

(400 + 500) + (20 + 10) + (3 + 0)

200

Write 270 + 341 in expanded form

(200 + 300) + (70 + 40) + (0 +1) 

300

Write 320 + 148 in expanded form

(300 + 100) + (20 + 40) + (0 + 8)

400

318 + 393

(300 + 300) + (10 + 90) + (8 + 3)

500

Write 532 + 360 in expanded form

(500 + 300) + (30 + 60) + (2 + 0)

Anything Goes!

100

950 - 100 = 

850

200

Write 792 in expanded form.

700 + 90 + 2

300

Sam ate 14 hot dogs and 16 marshmallows.  Jack ate 18 hot dogs, but only 11 marshmallows.  Who ate the most?  Sam or Jack?

Sam

400

There are 61 third graders and 65 fourth graders at South Fork School.  There are 59 second graders, 52 first graders, and 40 kindergarteners.  Are there more third and fourth graders than Kindergarten, first and second graders combined?  

No

61 + 65 = 120 third and fourth graders.  

59 + 52 + 40 = 151 K-second graders

500

Molly makes jewelry out of beads.  She buys 408 red beads, 240 green beads, and 259 blue beads.  How many more red and green beads does Molly buy than blue beads?

Molly buys 389 more red and green beads than blue beads. She buys 648 red and green beads and only 259 blue beads.  648 - 259 = 389.