Rounding
Addition
Subtraction
Key Words
Word Problems
100

What is 374 rounding to the nearest ten?

370

100

416+195

611

100

496-165

331

100

"Combined" tells me that I am going to ________.

add

100

Matt's family is going on a trip. They are traveling 283 miles the first day, 165 miles the second day, and 359 miles the third day. How many miles are they traveling on the first three days of their trip?

807 miles

200

What is 268 rounded to the nearest 100?

300

200

614+456

1,070

200

642-196

446

200

"Left" means that I am going to ________.

Ex: ...how many are left?

subtract

200

Jo Jo’s Smoothie shop served 412 cups of smoothie on Monday, 336 cups on Tuesday, and 527 cups on Wednesday. What is the total number cups of smoothie served at Jo Jo’s Smoothie Shop on the three days?

1,275 cups

300

What is 466 rounded to the nearest 10?

470

300

264+398

662

300

468-176

292

300

"Altogether" and "total" are key words that tell me to ________.

add

300

There are 278 dogs that are entered into the pet show. 121 of the dogs have pointy ears and the rest of the dogs have fluffy ears. How many of the dogs have fluffy ears?

157 dogs

400

What is 5,384 rounded to the nearest 100?

5,400

400

514+457

971

400

913-728

185

400

"how many more" means to _________.

subtract

400


Zack skip counted by 4 to find the total number of chairs he needed for a puppet show. He graphed his sequence on the number line below. What is the missing number?

39

500

What is 935 rounded the nearest ten AND hundred?

940 and 900

500

756+589

1,345

500

942-478

464

500

What does ABOUT mean to do?

A. round    B. add    C. subtract

A. add

500

Becky is making pillows for her school project.  She needs 288 inches of trim for one pillow and 323 inches of trim for the other pillow.  Which is the best estimate for the length of trim she needs for both pillows?   

A. 400 inches     B. 500 inches    C. 600 inches    D. 700 inches

C. 600 inches

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