3 or 4 Decimals and Whole numbers

Problem 1

A mixture is obtained by mixing four items of following weights; 132.45 grams, 220.11 grams, 128.62 grams and 140 grams. What is the total weight of the mixture?

Solution

Step 1:

The first items weight = 132.45 grams

The second items weight = 220.11 grams

The third items weight = 128.62 grams

The fourth items weight = 140 grams

Step 2:

The total weight of the four items

= 132.45 + 220.11 + 128.62 + 140

= 621.18 grams

Problem 2

Phil saved 142.12,136.72, 330.27and250 in four months. Find the total amount Phil saved during those four months.

Solution

Step 1:

Amount saved in first month = $142.12

Amount saved in first month = $136.72

Amount saved in first month = $330.27

Amount saved in first month = $250

Step 2:

The total amount saved in four months

= 142.12+136.72 + 330.27+250

= $859.11