Ming completed this multiplication problem. Why did Ming place a zero in the number 590? NOTE: There is a check answer button in the bottom right corner. Click this to check your answer before moving on to the next question. It will not tell you the correct answer, but it will tell you if the answer you selected is correct. You can use this feature once per question. (1 point) Responses She thought that 1 × 9 equaled zero. She thought that 1 × 9 equaled zero. The digit 1 in 16 has a value of 10. The digit 1 in 16 has a value of 10. The digit 9 in 59 has a value of 90. The digit 9 in 59 has a value of 90. She found the sum of 1 and 9.

Ming placed a zero in the number 590 because the digit 1 in 16 has a value of 10. This indicates that she was likely multiplying 16 by 9, and when she was calculating, she recognized that the multiplication involved the value of 10 (from the digit 1 in 16) and positioned her result accordingly, leading to the zero in the tens place of her intermediate product, 590.

A student completed this division problem. The first error appears in . 12 goes into 43 times, so the correct answer to 432÷12 is .

To complete the division problem \( 432 \div 12 \):

1. Start by determining how many times 12 goes into 43:
- 12 goes into 43 three times since \( 12 \times 3 = 36 \).

2. Subtract 36 from 43, which gives you 7.

3. Bring down the next digit, which is 2 (from 432), making it 72.

4. Now determine how many times 12 goes into 72:
- 12 goes into 72 six times since \( 12 \times 6 = 72 \).

5. Subtract 72 from 72, which gives you 0.

Putting this all together, the correct answer to \( 432 \div 12 \) is 36.

So, the first error appears when calculating how many times 12 goes into 43; the correct answer to \( 432 \div 12 \) is **36**.

witch step has the error

The error occurs in the first step where the student determines how many times 12 goes into 43.

If the student incorrectly states that 12 goes into 43 four times (which is incorrect because \( 12 \times 4 = 48 \), which is greater than 43), that would be the first error.

The correct approach is to realize that 12 goes into 43 three times (as \( 12 \times 3 = 36 \)), which is the correct calculation. Therefore, the error is specifically in the step of determining how many times 12 fits into 43.

Silvio completed this addition problem. Why did Silvio place a number above the 1 in 142? NOTE: There is a check answer button in the bottom right corner. Click this to check your answer before moving on to the next question. It will not tell you the correct answer, but it will tell you if the answer you selected is correct. You can use this feature once per question. (1 point) Responses 142 rounded to the nearest hundred is 1 hundred. 142 rounded to the nearest hundred is 1 hundred. The sum of 4 tens and 9 tens is 13 tens, which is regrouped as 1 ten and 3 hundreds. The sum of 4 tens and 9 tens is 13 tens, which is regrouped as 1 ten and 3 hundreds. The sum of 4 tens and 9 tens is 13 tens, which is regrouped as 1 hundred and 3 tens. The sum of 4 tens and 9 tens is 13 tens, which is regrouped as 1 hundred and 3 tens. 93 rounded to the nearest hundred is 1 hundred.

Silvio placed a number above the 1 in 142 because **the sum of 4 tens and 9 tens is 13 tens, which is regrouped as 1 hundred and 3 tens**.

When adding two numbers, if the sum of a column exceeds 10, it is necessary to regroup or carry over. In this case, when adding the tens (4 from 142, which is actually 40, plus 9 from 93, which is 90), the result is 13 tens (or 130). So, Silvio placed a 1 (representing 1 hundred) above the 1 in 142, indicating that he is carrying over to the next column.

what is the answer

The correct response is: **The sum of 4 tens and 9 tens is 13 tens, which is regrouped as 1 hundred and 3 tens.**

This explanation accurately describes why Silvio placed a number above the 1 in 142 when performing the addition, as he was carrying over the extra tens that resulted from adding the tens columns together.

There are 12 inches in a foot. Which expressions describe how many inches are in 4 feet? Check the THREE that apply.(3 points) Responses 12 ÷ 4 12 ÷ 4 12 + 12 + 12 + 12 12 + 12 + 12 + 12 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 12 + 4 12 + 4 4 × 12

To determine how many inches are in 4 feet, we can use the fact that there are 12 inches in a foot. Thus, the total number of inches in 4 feet can be calculated as follows:

1. **12 + 12 + 12 + 12** (this adds up to 48, which represents 12 inches for each of the 4 feet)
2. **4 × 12** (this is a direct multiplication to calculate the total: 4 feet × 12 inches per foot = 48 inches)

The incorrect options would be those that either represent division or unrelated additions.

So, the three responses that apply are:
- **12 + 12 + 12 + 12**
- **4 × 12**

The third correct expression could be interpreted as **not providing an option directly**, but there are multiple ways to express the summation or multiplication. The best choices are definitely:
- **12 + 12 + 12 + 12**
- **4 × 12**

Please note, **there are not three correct expressions provided in your options, only two.** The point is that while you need to confirm what counts towards your response, the accurate total inches in 4 feet can be achieved just through those two expressions.