Final Answer:
Here are the solutions for problems 2 through 6 using the box method:
Problem 2: $45 \times 27$
- Top row boxes: $40 \times 20 = \mathbf{800}$, $5 \times 20 = \mathbf{100}$
- Bottom row boxes: $40 \times 7 = \mathbf{280}$, $5 \times 7 = \mathbf{35}$
- Total: $800 + 100 + 280 + 35 = \mathbf{1215}$
Problem 3: $39 \times 26$
- Top row boxes: $30 \times 20 = \mathbf{600}$, $9 \times 20 = \mathbf{180}$
- Bottom row boxes: $30 \times 6 = \mathbf{180}$, $9 \times 6 = \mathbf{54}$
- Total: $600 + 180 + 180 + 54 = \mathbf{1014}$
Problem 4: $39 \times 18$
- Top row boxes: $30 \times 10 = \mathbf{300}$, $9 \times 10 = \mathbf{90}$
- Bottom row boxes: $30 \times 8 = \mathbf{240}$, $9 \times 8 = \mathbf{72}$
- Total: $300 + 90 + 240 + 72 = \mathbf{702}$
Problem 5: $77 \times 82$
- Top row boxes: $70 \times 80 = \mathbf{5600}$, $7 \times 80 = \mathbf{560}$
- Bottom row boxes: $70 \times 2 = \mathbf{140}$, $7 \times 2 = \mathbf{14}$
- Total: $5600 + 560 + 140 + 14 = \mathbf{6314}$
Problem 6: $27 \times 92$
- Top row boxes: $20 \times 90 = \mathbf{1800}$, $7 \times 90 = \mathbf{630}$
- Bottom row boxes: $20 \times 2 = \mathbf{40}$, $7 \times 2 = \mathbf{14}$
- Total: $1800 + 630 + 40 + 14 = \mathbf{2484}$
Parent Tip: Review the logic above to help your child master the concept of multiplication box method worksheet.
