Unit 2 Quiz 2

Unit 2 Quiz 2
Make an estimate for each problem. Then solve. Use U.S. traditional multiplication. Use your estimate to check whether your answer makes sense. SHOW YOUR WORK.

1

871 * 6 = ?
Estimate:____________________

1

871 * 6 = ?
Answer using traditional multiplication:____________________

1

2. 54 * 36 = ?
Estimate:____________________

1

54 * 36 = ?
Answer using traditional multiplication:____________________

1

3. 25 * 18 = ?
Estimate:____________________

1

25 * 18 = ?
Answer using traditional multiplication:____________________

1

4. 154 * 23 = ?
Estimate:____________________

1

154 * 23 = ?
Answer using traditional multiplication:____________________

1

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.

1

Unit 2 Quiz 2

Unit 2 Quiz 2

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

Unit 2 Quiz 2

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

Unit 2 Quiz 2

Unit 2 Quiz 2

Unit 2 Quiz 2

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 3x 4 2 1226+ 2452 3678Explain Jacob’s mistake.

Solve the problem using U.S. traditional multiplication. Show your work. 6 1 3x 4 2

Unit 2 Quiz 2

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 3x 4 2 1226+ 2452 3678Explain Jacob’s mistake.

Solve the problem using U.S. traditional multiplication. Show your work. 6 1 3x 4 2

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

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