Introduction

Addition of money in dollars and cents is same as the addition of decimal numbers.Rules for addition with money

  • The money amounts to be added are lined up vertically with the decimal points and digits as per place values aligned one above the other.
  • The digits in the rightmost column are first added.
  • Then the digits of all columns are added one by one till we get the sum of the money amounts.
  • We bring down the decimal point and the dollar sign at the right places.

Problem 1:

Add 134.10+134.10+73.09

Solution

Step 1:Sum of Decimal

The money amounts to be added are lined up vertically with the decimal points and dollar signs aligned one above the other’

Step 2:

We begin at the right most column 0 + 9 = 9; next 1 + 0 = 1; 4 + 3 = 7;

3 + 7 = 10, we bring down 0 and carry 1 to next column; next 1 + 1 = 2.

Step 3:

So we get the final sum of the money amounts as $ 207.19Sum of DecimalProblem 2:

Add 204.38+204.38+183.26

Solution

Step 1:Addition of Aligned Decimal

The money amounts to be added are lined up vertically with the decimal points and dollar signs aligned one above the other.

Step 2:

We begin at the right most column 8 + 6 = 14, bring down 1 and carry 1; next 1 + 3 + 2 = 6; Next 4 +3 = 7; 0 + 8 = 8, and lastly 2 + 1 = 3

Step 3:

So we get the final sum of the money amounts as $ 387.64Addition of Aligned Decimal


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