Math Review

Addition

100

145+843

988

200

248+432

680

300

198+24

222

400

589+243

832

500

666+244

910

Subtraction

100

849-738

111

200

390-123

267

300

400-329

71

400

525-476

49

500

601-209

391

Rounding

100

Round 456 to the nearest 100 

500

200

Round 238 to the nearest 10 

240

300

Round 529 to the nearest 100 

500

400

Round 378 to the nearest 10

380

500

Round 948 to the nearest 100

900

Word Problems

100

The teacher had 35 pencils and 25 erasers. How many pencils and erasers does the teacher have all together?

60 

200

The food store had 45 apples. 23 of the apples are red, how many apples are green? 

22 green apples. 

300

The book sale had 255 books. 153 books were sold at the sale. How many books are left at the book sale?

102 books are left

400

Tyler had 34 bracelets. His friend gave him 12 more bracelets. Tyler then gave his brother 10 bracelets. How many bracelets does Tyler have now? 

36 bracelets. 

500

Maggie had 42 cookies. 22 of the cookies are oatmeal and 15 cookies are chocolate chip. How many cookies are sugar cookies? 

5 sugar cookies

BONUS

100

The movie has 36 minutes left. How many minutes are left if you rounded to the nearest 10?

40 minutes. 

200

How many tens are in the number 98

9 tens. 

300

What is the midpoint between 340 and 350 ? 

345

400

The zoo had 400 animals. There are 150 zebras, and 220 giraffes. How many birds are there? 

30 birds. 

500

Ms.Simpson had 348 balloons. 30 balloons are red and 55 are blue. How many balloons are other colors?

263