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Addition and Subtraction of Decimals

This topic covers addition and subtraction of decimals. We will learn to align the decimal point and use zeroes as placeholders to solve questions covering this concept.
Practice Question
1

How much change would you receive if you gave a cashier $20 for a purchase of $17.899?

 
Possible Answers
Your Answer
Correct Answer
A)

$2.1
B)

$2.3
C)

$2.101
D)

$2.2
Practice Question
2

During one month in the United States, 435.46 million commuter trips were taken on buses, and 25.768 million commuter trips were taken on light rail. How many more trips were taken on buses than on light rail?

 
Possible Answers
Your Answer
Correct Answer
A)

437.682 million
B)

461.228 million
C)

456.775 million
D)

409.692 million
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