Question

mr. silva bought 5 watermelons for a school party. each watermelon weighs 9 kilograms. how many grams do all 5 watermelons weigh?

Explanation:

Step1: Calculate total weight in kilograms

To find the total weight of 5 watermelons in kilograms, we multiply the number of watermelons (5) by the weight of each watermelon (9 kilograms). So, $5\times9 = 45$ kilograms.

Step2: Convert kilograms to grams

We know that 1 kilogram is equal to 1000 grams. So, to convert 45 kilograms to grams, we multiply 45 by 1000. That is, $45\times1000 = 45000$ grams.

Answer:

45000 grams