Multiple choice

Find the approximate value of the question mark (?) in given below 0.0004 ÷ 0.0001 × 36.000009 =?

  1. 0.10

  2. 1.45

  3. 145

  4. 14.5

  5. 1450

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Division first: 0.0004 ÷ 0.0001 = 4. Then multiply: 4 × 36.000009 = 144.000036. This is approximately 145. Remember: division by a smaller decimal yields a larger number - 0.0001 goes into 0.0004 four times.