871 * 6 = ?
Estimate:____________________
871 * 6 = ?
Answer using traditional multiplication:____________________
2. 54 * 36 = ?
Estimate:____________________
54 * 36 = ?
Answer using traditional multiplication:____________________
3. 25 * 18 = ?
Estimate:____________________
25 * 18 = ?
Answer using traditional multiplication:____________________
4. 154 * 23 = ?
Estimate:____________________
154 * 23 = ?
Answer using traditional multiplication:____________________
Jacob solved a multiplication problem using U.S. traditional multiplication.
His work is shown below.
6 1 3
x 4 2
1226
+ 2452
3678
Explain Jacob’s mistake.
Solve the problem using U.S. traditional multiplication. Show your work.
6 1 3
x 4 2