First let's find the result of the sum: 30 + 40 + 70 = 140 Now let's review the operations of each one: Jillian added 30and40and then 70: 30 + 40 = 70 70 + 70 = 140 Samuel added 30 and 70 and then 40 30 + 70 = 100 100 + 40 = 140 answer both are correct. Conclusion: the order of the factors does not alter the product.
