There are 90,000 famillies who donated to Nina's Fund. They donated 40 dollars each. How many dollars were raised?

360,0000 dollars

Step-by-step explanation:

Way 1: Multiply.

90,000 times 10.

You get 900000.

Do this 3 more times and you get your answer.

Way 2: Add/Multiply

Multiply 90,000 times 10.

You get 900,000.

Add that repetitively 3 more times.

You get 360,0000 dollars both ways.