+/- 10
+/- 100
Word Problem
Strategies
Skip counting
100

346 + 10 = ?

356

100

378 + 100 = ?

478

100

There are 55 cupcakes at a shop.  They bake 10 more.  How many cupcakes are there in all?

65 cupcakes 

100

What is the strategy that uses blocks to show place value by ones, tens, and hundreds. 

Base ten blocks

100

Skip count from 0 to 25 by 5s. 


___, ____, ____, _____, ____, ____

0, 5, 10, 15, 20, 25

200

523 - 10 = ?

513

200

276 - 100 = ?

176

200

There are 23 dogs at the dog park.  At 5:00 p.m. 10 dogs leave.  How many dogs are left at the park?

13 dogs 

200

Solve 215 + 100 using base ten blocks. 

315

200

What are the next numbers in the pattern?

25, 20, 15, ______, _______

10, 5

300

____ + 10 = 320

310

300

_____ + 100 =  345

245

300

There are 129 students at the school.   Then 10 more students come late.  How many students are there in all?

What is the important information?

-129 students

-10 more

-How many students in all?

300

Show the number line strategy to solve 340 + 100.  

440

300

200, 205, 210, ____, _____


Name the next two numbers in the pattern.

215, 220

400

267 + ____ = 277

10


400

295 -100 = ?

195

400

There are 532 fish in the aquarium tank.  100 more fish were added to the tank.  How many fish are there total?

632 fish

400

Show the number line strategy to solve 240 - 100.  

140

400

240, 230, _____, 210, ________


What are the two missing numbers in the pattern?

220 and 200


500
Sally has Pokemon cards.  Then she gets 10 more for her birthday.   Now she has 460.  


How many Pokemon cards did Sally have to start?

450

500

Jeff has 345 stickers.   His grandma gives him a pack of 100 stickers for his birthday.   How many stickers does Jeff have in all?

445 stickers

500

Jeff has 437 Pokemon cards in his binder, but he found out that 10 cards were fake.  How many real Pokemon cards does he have?

Jeff has 427 real Pokemon cards. 

500

Solve 347 + 100 using at LEAST two different strategies

447

500

What are the missing numbers in the pattern?


335, 330, ______, 320, _______

325 and 315

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