Practice Test 3

A student multiplies $504\times 27$ using partial products based on place value. The student writes $504\times 7=3,528$ and $504\times 20=10,080$ and then combines the partial products. Which final product is correct?

A student is multiplying $219\times 63$ using the standard algorithm. The student correctly computed $219\times 3=657$ for the ones digit. Because multiplication relies on place value, what should the student do for the 6 in 63 (which means 6 tens) and how should it be aligned?