Answer:
1) 44
2) 430
3) 17
Explanation:
1) 4 × 4 = 16, and 4 + 4 = 8.
2) The units digit is 0. Since the hundreds digit is one more than the tens digit, and since the sum of the three digits is 7, the hundreds digit is 4, and the tens digit is 3.
3) 1 × 7 = 7, and 1 + 7 = 8. The units digit is 7, and the tens digit is 1.