Answer:
B. 21
E. 400
Step-by-step explanation:
Partial product of two digits number is the multiplication of the sum of place values of digits.
43 × 17
= (40 + 3) × (10 + 7)
To remove the parenthesis
= 40 × 10 + 40 × 7 + 3 × 10 + 3 × 7
Multiplying each pair separately
40 × 10 = 400
40 ×7 = 280
3 × 10 = 30
3 × 7 = 21
The partial product of 43 × 17 is
400 + 280 + 30 + 21 = 731
43 × 17 = 731
The answer is
B. 21
E. 400
