+/- 10, 100
partial sums
break apart
open number line
word problems
100

What is 300 more than 377?

677

100

Use the partial sums strategy to solve:

233+212= 

445

100

Use the break apart strategy to solve:

189+222=

411

100

Use an open number line to solve:

125+227=

352

100

Alanna has 219 pop-its. Evie has 10 more pop-its than Alanna. How many pop-its do both girls have in all?

448

200

What is 20 less than 908?

888

200

Use the partial sums strategy to solve:


477+298=

775

200

Use the break apart strategy to solve:

541+223=

764

200

Use an open number line to solve:

225+347=


572

200

Andrew has 239 pokemon cards. Akay has 20 fewer pokemon cards than Andrew. How many pokemon cards do both boys have in all?

458

300

What is 30 more than 799?

829

300

Use the partial sums strategy to solve:

289 +599 =

888

300

Use the break apart strategy to solve: 

589+ 227=

816

300

Use an open number line to solve:

555+279=

834

300

Sydney has 178 markers. Ana has 228 more markers than Sydney. How many markers do both girls have in all?

584

400

What is 100 more than 900?

1,000

400

Use the partial sums strategy to solve:

475+ 478

953

400

Use the break apart strategy to solve: 

745+ 189=

934

400

Use an open number line to solve:

774+188= 

962

400

Ethan has 229 pencils. Evan has 399 more pencils than Ethan. How many pencils do both boys have in all?

857

500

What is 50 less than 212?

162

500

Use the partial sums strategy to solve:

558+ 256= 

814

500

Use the break apart strategy to solve: 

664+245=

909

500

Use an open number line to solve:

669+ 324= 

993

500

Arya has 167 stuffed animals. Sayla has 222 stuffed animals. Maya has 578 stuffed animals. How many stuffed animals do the girls have in all?

967