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Addition w/ Estimating
Addition or Subtraction with Renaming
Word Problems
Using Addition to check Subtraction
100

386  __  195

386 > 195

100

18+41=59

What is the estimated equation and sum?

20+40=60

100

907+56=

963

100

The second and third grade students are going on a field trip to the zoo. There are 87 students in second grade and 74 students in third grade. How many more students are in second grade than in third grade?

87-74=13

There are 13 more students in second grade than in third grade.

100

Use addition to check your work:

47-19 = _____.

47-19 = 28

28+19 = 47

200

591 __ 519

591 > 519

200

312+189=501

What is the estimated equation and sum to the nearest hundred?

300+200=500

200

86-59=

27

200

The third-grade classes collected bugs. Class 3A collected 128 bugs. Class 3B collected 119 more bugs than Class 3A. How many bugs did Class 3B collect?

128+119=247

Class 3B collected 247 bugs.

200

Use addition to check your work:

484-168 = ___

484-168 = 316

316+168= 484

300

617 __ 617

617 = 617

300

457+294=751

What is the estimated equation and sum to the nearest hundred?

500+300=800

300

527+168=

695

300

Mom bought a bag with 415 nuts to feed the squirrels during the winter. Dad bought a bag with 250 nuts. How many more nuts are in Mom's bag than in Dad's bag?

415-250=165

Mom's bag has 165 more nuts than in Dad's bag.

300

Use addition to check your work:

587-25 = ___

587-25 = 562

562+25 = 587

400

485 __ 50+9

485 > 50+9

400

592+349=941

What is the estimated equation and sum?

600+300=900

400

980-90=

890

400

At the beginning of the week, a gift shop had 133 t-shirts and 128 mugs. At the end of the week, there were 39 t-shirts and mugs left in the shop. How many t-shirts and mugs did the shop sell that week?

133+128=261

261-39=222

The shop sold 222 t-shirts and mugs that week.

400

Use addition to check your work:

435-129 = ___

435-129 = 306

306+129 = 435

500

346 __ 300+60+4

346 < 300+60+4

500

502+791=1,293

What is the estimated equation and sum?

500+800=1,300

500

481+230+215=

926

500

For a bake sale, the third grade class had 216 cookies and 168 cupcakes. At the end of the sale, there were 46 cookies and cupcakes left. How many cookies and cupcakes did the class sell during the bake sale?

216+168=384

384-46=338

The class sold 338 cookies and cupcakes during the bake sale.

500

Use addition to check your work:

607-246 = ___

607-246 = 361

361+246 = 607