Question

This area model can be used to determine the product of 862 × 7. Which equation describes the multiplication calculation?

Answer 1

800 × 7 + 60 × 7 + 2 × 7

Explanation:

The area of the figure equals :

Area of rectangle = Length * width

Width = 7

Length = 862

862 in expanded form:

800 + 60 + 2

Hence, Multiplying the expanded form by the width ;

(800 + 60 + 2) * 7

800*7 + 60*7 + 2*7