Jerome estimate that the total number of people for the past 2 years visiting the aquarium is 900,000. Gina estimated it to be 870,000.

Write a number sentence to show how Jerome found his estimate.

If you round 870,000 to the nearest hundred thousand, it becomes 900,000.

I hope this helps. Thanks for asking.

200+37=237

To find Jerome's estimate, we need to subtract Gina's estimate from the total number of people visiting the aquarium for the past 2 years. Let's represent the total number of people Jerome estimated as "J" and Gina's estimation as "G":

J - G = 900,000 - 870,000