Let's solve these multiplication problems step-by-step:
1. 249 * 42
First, multiply 249 by 2 (the ones digit of 42):
249 * 2 = 498
Next, multiply 249 by 40 (the tens digit of 42):
249 * 4 = 996, so 249 * 40 = 9960
Finally, add the two results together:
498 + 9960 = 10458
Answer: 10458
2. 508 * 125
First, multiply 508 by 5 (the ones digit of 125):
508 * 5 = 2540
Next, multiply 508 by 20 (the tens digit of 125):
508 * 2 = 1016, so 508 * 20 = 10160
Then, multiply 508 by 100 (the hundreds digit of 125):
508 * 100 = 50800
Finally, add the three results together:
2540 + 10160 + 50800 = 63500
Answer: 63500
3. 608 * 27
First, multiply 608 by 7 (the ones digit of 27):
608 * 7 = 4256
Next, multiply 608 by 20 (the tens digit of 27):
608 * 2 = 1216, so 608 * 20 = 12160
Finally, add the two results together:
4256 + 12160 = 16416
Answer: 16416
4. 953 * 74
First, multiply 953 by 4 (the ones digit of 74):
953 * 4 = 3812
Next, multiply 953 by 70 (the tens digit of 74):
953 * 7 = 6671, so 953 * 70 = 66710
Finally, add the two results together:
3812 + 66710 = 70522
Answer: 70522