Addition/Subtraction Challenge

Sum

100

2,346+3,652

5,998

200

5,490+2,307

7,797

300

7,739+2,240

9,979

400

8,734+1,265

9,999

500

1,234+1,225

2,459

Sum With Regrouping

100

2,742+3,568

6,310

200

4,678+6,274

10,952

300

4,678+2,963

7,641

400

6,785+2,456

9,241

500

6,789+9,999

16,788

Difference

100

5,555-2,341

3,214

200

8,798-2,456

6,342

300

9,542-6,431

3,111

400

8,947-1,234

7,713

500

8,902-1,202

7,700

Difference With Regrouping

100

8,465-4,357

4,108

200

8,937-3,468

5,469

300

6,832-2,689

4,143

400

5,201-4,336

865

500

4,300-2,543

1,757

Unknowns

100

89 + _____ = 190

101

200

63 + ______ = 335

272

300

294 + ____ = 982

688

400

453 + ______ = 764

311

500

3,728 - _____ - 120 = 1,093

2,515