When rounded off to the nearest tens, the numbers are 10, 20, 150 and 10
Step-by-step explanation:
- Step 1: If the numbers have their units digit as 5 or greater, then round it off to the next ten or else round it off to the previous ten.
⇒ 12 ≈ 10
⇒ 15 ≈ 20
⇒ 154 ≈ 150
⇒ 6 ≈ 10
