Part A

Question

There are 19 racks of plates in City Restaurant. Each rack has 37 plates. Which choice shows the correct estimate of how many plates are on the plate rack?

(1 point)
Responses

400

400

600

600

800

800

1,000

1,000
Question 2
Part B
How do you know? Select the correct equation.

(1 point)
Responses

20×20=400

20 × 20 = 400

20×30=600

20 × 30 = 600

20×40=800

20 × 40 = 800

20×50=1,000

20 × 50 = 1 , 000
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Answer 1

To estimate the total number of plates in the City Restaurant, we can use rounding for the calculations.

Part A:

You have 19 racks of plates, and each rack has 37 plates. To estimate, we can round:

• Round 19 to 20 (a nearby round number).
• Round 37 to 40 (a nearby round number).

Now calculate the estimated total:

• Estimated total = 20 racks × 40 plates = 800 plates.

The correct estimate of how many plates are on the plate rack is 800.

Part B:

The equation that corresponds with the estimation we made would be:

• 20 × 40 = 800.

So, the correct responses would be:

Part A: 800
Part B: 20 × 40 = 800