Question

Isabella bought school supplies at the store. She chose a notebook for $3.99, 2 pencils that each cost $1.09, and 1 package of markers for $5.25. What is the BEST estimate of the total cost of these items before tax?

Answer 1

Notebook: 3.99

Pencils: 1.09 x 2 = 2.18

Markers: 5.25

$11.42 = not estimated/exact

Estimated: $11.50

Answer 2

$1.09 x 2 = $2.18. $2.18 + $3.99 = $6.17. $6.17 + $5.25 = $11.42. So, the best estimate of total cost (excluding tax) equals $11.42.