Multi-Digit Multiplication — Answer Key
Part A: Fill in the Blank
Write the missing word or number on each line.
1. The product of 248 and 36 is 8928.
Grade 5: 248 times 36 equals 8,928 from partial products 1,488 and 7,440.
2. When 357 is multiplied by 42, the product equals 14994.
Grade 5 multi-digit multiplication: 357 times 42 equals 14,994 using the standard algorithm.
3. The result of 612 times 19 is 11628.
Grade 5: 612 times 19 equals 11,628 by adding 5,508 and 6,120.
4. Using the standard algorithm, 245 times 63 has a product of 15435.
Grade 5 students compute 245 times 63 equals 15,435 using two partial products: 735 and 14,700.
5. The product 503 times 27 equals 13581.
Grade 5 multi-digit multiplication with a zero: 503 times 27 equals 13,581, the sum of 3,521 and 10,060.
6. When you multiply 384 by 25, the product is 9600.
Grade 5: 384 times 25 equals 9,600 because 1,920 plus 7,680 equals 9,600.
7. The product of 729 and 31 is 22599.
Grade 5: 729 times 31 equals 22,599 by adding partial products 729 and 21,870.
8. Multiplying 168 by 54 gives a product of 9072.
Grade 5 partial products: 168 times 54 equals 9,072 from 672 plus 8,400.
9. The result of 296 times 48 is 14208.
Grade 5 multi-digit multiplication: 296 times 48 equals 14,208 by combining 2,368 and 11,840.
Part B: Matching
Match each item on the left to the correct answer on the right.
1. Match each item to its correct answer.
248 times 36 strategy
→ 8,928 final product
8,928 final product
357 times 42 strategy
→ 14,994 final product
14,994 final product
612 times 19 strategy
→ 11,628 final product
11,628 final product
245 times 63 strategy
→ 15,435 final product
15,435 final product
Grade 5 students verify products by aligning partial products carefully so each multiplication problem matches its exact answer.