Sandra used partial products to find the product of
438
×
17
by multiplying 438 by 1 and 438 by 7 to get 3,066. Find the product of
438
×
17
by using partial products. Is Sandra correct? Compare your answer to Sandra's and explain why it is or is not the same.
The answer is 7,446
multiplying 10 and 438 gives 4380
multiplying 7 and 438 gives 3066
4380 + 3066 = 7446
Sandra was incorrect, as she forgot that the 1 in the tens place is actually a 10