Sequences
Estimation
2-step real world
Addition
Subtraction
100

What is the rule for the sequence below:
325, 329, 333, 337

Rule: +4

100

Round to the nearest hundred then subtract
854 - 235 = ____

700

100

Alexandra has 108 pokemon cards. She bought 67 more. She then gave 88 to her brother. How many does she have now? 

87 Pokemon Cards.

100

429 + 312 =

741

100

872 - 681

191

200

Fill in the sequence below:

28, 33, 38, ___, ___

43, 48

200

Round to the nearest 10 then add

364 + 427 = _____

790

200

Write the equation:
Stacy had 302 seashells in her collection. On vacation she found 103 more and her brother found 49 for her. How many does she have now?

302 + 103 + 49 = ___

200

238 + 322 = 

560

200

821 - 453

368

300

What is the rule for the sequence below:
168, 162, 156, 150, 144

-6

300

Joe made 429 cups of lemonade. He sold 366 cups of lemonade. About how many cups does he have left?

He has about 60 cups of lemonade leftl.

300

Kara is reading a book that has 600 pages. She read 146 pages on Monday and 203 on Tuesday. How many pages are left to read?

She has 251 pages left to read.

300

408 + 239 =

647

300

400 - 173

227

400

Fill in for the sequence below:

161,159, 157,155, ___, ____

153, 151

400

Bookshelf one has 549 books. Bookshelf two has 363 books.  About how many books are there in all?

Round to the nearest hundred

There are about 900 books.

400

Write the Equation:
A store had 244 new shirts. They got a shipment of 138 more. That afternoon they sold 97 shirts. How many shirts do they have now?

244 + 138 - 97 = ______

400

183 + 607 = 

790

400

800 - 406

394

500

Fill in the missing numbers and identify the rule

145, 135, 125, 115, ____, _____

Rule: -10 

105, 95

500

Mark had $942. He spent $346 on a new TV. He also spent $196 on a new phone. About how much money does he have left?

Round to the nearest ten

He has about $390 left.

500

Sarah picked 458 apples. She sold 146 in the morning and 233 in the afternoon. How many apples does she have left?

She has 79 apples left.

500
235 + 542 + 187 =

964

500

1,000 - 585

415

M
e
n
u