Question

try this 8 ali shaded 0.4 of a hundreds grid. tarun shaded 0.32 of the same grid. how much of the grid did they shade in all? number model with unknown: ________ answer: __ of the grid explain how you got your answer. ___________________________________________________________________________________________________

Explanation:

Step1: Identify the operation

To find the total shaded area, we need to add the fractions (decimals) of the grid each person shaded. So we add 0.4 (Ali's shaded part) and 0.32 (Tarun's shaded part).
Expression: \(0.4 + 0.32\)

Step2: Perform the addition

Convert 0.4 to 0.40 (to have the same number of decimal places) and then add: \(0.40+ 0.32 = 0.72\)

Answer:

0.72

For the explanation part: We need to find the total shaded portion, so we add the decimal values representing the shaded parts of Ali (0.4) and Tarun (0.32). First, we can rewrite 0.4 as 0.40 to make the decimal places equal. Then, adding the tenths and hundredths places: \(0 + 3 = 3\) (hundredths), \(4+3 = 7\) (tenths), and the ones place remains 0. So \(0.4+0.32 = 0.72\).