Lesson 06: Methods for Multiplying Decimals | Unit 5: Arithmetic in Base Ten

You can use a rectangle to represent $$(0.3)\cdot(0.5)$$
What must the side length of each square represent for the rectangle to correctly represent $$(0.3)\cdot(0.5)$$ ?

You can use a rectangle to represent $$(0.3)\cdot(0.5)$$

What area is represented by each square?

Suppose gasoline costs $2.29 per gallon in Buffalo, New York, and $0.91 per liter in Toronto, Canada. There are 3.8 liters in one gallon. How much does one gallon of gas cost in Toronto? Round your answer to the nearest cent.

Suppose gasoline costs $2.29 per gallon in Buffalo, New York and $0.91 per liter in Toronto, Canada. There are 3.8 liters in one gallon.

Is the cost of gas greater in Buffalo or in Toronto? How much greater?

Why does Priya’s method of calculating $$\left(1.05\right)\cdot\left(2.8\right)$$ by calculating $$105\cdot28$$ , then moving the digits three places to the right, make sense?