Question

What is the best estimate of 687 × 391?

280,000
210,000
240,000
180,000

Answer 1

`\huge\text{Hey there!}`

`\huge\textbf{Original equation/problem:}`

`\mathbf{687*391}`

`\mathbf{= 391*687}`

`\mathbf{= 268,617}`

`\huge\textbf{Now, we're going to solve for your}\\\huge\textbf{question:}`

`\huge\text{Assuming you want us to estimate to the}\\\huge\text{nearest hundred. So we will do so, because}\\\huge\text{it is easier to understand it like that.}`

`\mathbf{687 \rightarrow 700}\\\mathbf{391\rightarrow 400}`

`\huge\textbf{New equation:}`

`\mathbf{700 * 400}`

`\mathbf{= 400*700}`

`\mathbf{= 280,000}`

`\huge\text{Therefore, your answer is: \boxed{\mathsf{Option\ A.\ 280,000}}}\huge\checkmark`

~
`\frak{Amphitrite1040:)}`