5. Estimate
   

To estimate , you can round 76 to the nearest ten. Rounding 76 gives you 80, so you can think of it as . This equals , providing a pretty good approximation of the actual product!

In the case of , instead of doing the multiplication directly, using estimation can save time and is particularly useful in quick calculations or when you’re checking your work. Remember, though, while estimation is handy, confirming with exact calculations is always a smart idea, especially in critical situations!