Question

use the model to find 4 × 46.
first, find the area of each rectangle.
40 6
4

Explanation:

Step1: Calculate the area of the orange rectangle

The formula for the area of a rectangle is \(A = l\times w\). For the orange rectangle with \(l = 40\) and \(w=4\), we have \(A_1=40\times4 = 160\).

Step2: Calculate the area of the pink rectangle

For the pink rectangle with \(l = 6\) and \(w = 4\), using the area formula \(A = l\times w\), we get \(A_2=6\times4=24\).

Step3: Calculate the total area

The total area \(A = A_1 + A_2\). Substitute \(A_1 = 160\) and \(A_2=24\) into the formula: \(A=160 + 24=184\).

Answer:

\(4\times46 = 184\)