Solve the multiplication problems.

Let's solve the multiplication problems step by step.

1. 325 * 144

Multiplying 325 by 4 (ones place of 144): 325 * 4 = 1300

Multiplying 325 by 40 (tens place of 144): 325 * 40 = 13000

Multiplying 325 by 100 (hundreds place of 144): 325 * 100 = 32500

Adding the results: 1300 + 13000 + 32500 = 46800

Answer: 46800

2. 431 * 457

Multiplying 431 by 7 (ones place of 457): 431 * 7 = 3017

Multiplying 431 by 50 (tens place of 457): 431 * 50 = 21550

Multiplying 431 by 400 (hundreds place of 457): 431 * 400 = 172400

Adding the results: 3017 + 21550 + 172400 = 196967

Answer: 196967

3. 308 * 121

Multiplying 308 by 1 (ones place of 121): 308 * 1 = 308

Multiplying 308 by 20 (tens place of 121): 308 * 20 = 6160

Multiplying 308 by 100 (hundreds place of 121): 308 * 100 = 30800

Adding the results: 308 + 6160 + 30800 = 37268

Answer: 37268

4. 612 * 276

Multiplying 612 by 6 (ones place of 276): 612 * 6 = 3672

Multiplying 612 by 70 (tens place of 276): 612 * 70 = 42840

Multiplying 612 by 200 (hundreds place of 276): 612 * 200 = 122400

Adding the results: 3672 + 42840 + 122400 = 168912

Answer: 168912

5. 716 * 209

Multiplying 716 by 9 (ones place of 209): 716 * 9 = 6444

Multiplying 716 by 0 (tens place of 209): 716 * 0 = 0

Multiplying 716 by 200 (hundreds place of 209): 716 * 200 = 143200

Adding the results: 6444 + 0 + 143200 = 149644

Answer: 149644

6. 258 * 124

Multiplying 258 by 4 (ones place of 124): 258 * 4 = 1032

Multiplying 258 by 20 (tens place of 124): 258 * 20 = 5160

Multiplying 258 by 100 (hundreds place of 124): 258 * 100 = 25800

Adding the results: 1032 + 5160 + 25800 = 31992

Answer: 31992

7. 633 * 502

Multiplying 633 by 2 (ones place of 502): 633 * 2 = 1266

Multiplying 633 by 0 (tens place of 502): 633 * 0 = 0

Multiplying 633 by 500 (hundreds place of 502): 633 * 500 = 316500

Adding the results: 1266 + 0 + 316500 = 317766

Answer: 317766

8. 511 * 406

Multiplying 511 by 6 (ones place of 406): 511 * 6 = 3066

Multiplying 511 by 0 (tens place of 406): 511 * 0 = 0

Multiplying 511 by 400 (hundreds place of 406): 511 * 400 = 204400

Adding the results: 3066 + 0 + 204400 = 207466

Answer: 207466

9. 724 * 258

Multiplying 724 by 8 (ones place of 258): 724 * 8 = 5792

Multiplying 724 by 50 (tens place of 258): 724 * 50 = 36200

Multiplying 724 by 200 (hundreds place of 258): 724 * 200 = 144800

Adding the results: 5792 + 36200 + 144800 = 186792

Answer: 186792