1. one day less than thee week is ____ days?

2. round 18.94 rounded to the nearest whole number

3. 0.002, 0.0019, 0.0004. what is the number with the least value?

4. 2 x 0.4

5. 2 + 7=

6. twenty three thousandths in decimal form.

1 answer

Sure, let's go through each question step by step:

1. One day less than three weeks is ____ days?
- There are 7 days in a week.
- Three weeks would be \( 3 \times 7 = 21 \) days.
- One day less than 21 days is \( 21 - 1 = 20 \) days.
- **Answer:** 20 days

2. Round 18.94 to the nearest whole number:
- The decimal part is .94, which is 0.5 or greater, so you round up.
- **Answer:** 19

3. 0.002, 0.0019, 0.0004. What is the number with the least value?
- Comparing the numbers:
- 0.002
- 0.0019
- 0.0004
- The smallest value is 0.0004.
- **Answer:** 0.0004

4. Calculate 2 x 0.4:
- \( 2 \times 0.4 = 0.8 \)
- **Answer:** 0.8

5. Calculate 2 + 7:
- \( 2 + 7 = 9 \)
- **Answer:** 9

6. Write twenty-three thousandths in decimal form:
- Twenty-three thousandths means 23 out of 1000.
- In decimal form, this is 0.023.
- **Answer:** 0.023