Model
Break Apart Method
Algorithm
Number Line
100

Solve the problem using the model. 

632 + 214

846

100

Solve the below using the break-apart method:

420 + 275

695

100

Solve the problem using the algorithm. 

814 + 255 

1,069

100

Solve the problem using the number line. 

430 + 154 = 

584

200

Solve the problem using the model.


381 - 170

211

200

Solve the problem using the break-apart method. 

354 - 121 = 

233

200

Solve the problem using the algorithm. 

472 - 256 

216

200

Solve the problem using the number line. 

300 - 145 = 

155

300

Solve the problem using the model. 

542 + 384

926

300

Solve the problem using the break-apart method. 

233 + 167 = 

400

300

Solve the problem below using the algorithm: 

542 + 364

906

300

Solve the problem using the number line. 

369 + 128 = 

497

400

Solve the problem using the model. 

412 - 208

204

400

Solve the problem using the break-apart method. 

346 + 143 = 

489

400

Solve the problem using the algorithm: 

500 - 265

235

400

Solve the problem using the number line. 

298 + 167 

465

M
e
n
u