Steps to Solving Decimals
Adding Decimals
Subtracting Decimals
Word Problems
100

The first step to solving decimals is...

Line up the decimal points

100

.27 + . 51

.78

100

.68 - .42

.26

100

Ms. Doris went to the store to buy some fruit. The apples cost $0.46 and the pears cost $1.32. How much did she spend altogether?

$1.78

200
The second step to solving decimals is...

Fill in the "Ghost" zeros.

200

.49 + .11

.60

200

.326 - .11

.216

200

Ms. Leary bought some popcorn and a drink at the movies. The popcorn cost $2.34, and the drink cost $.50. How much did she spend altogether?

$2.84

300

The third step to solving decimals is...

Drop the decimal point straight down!

300

.34 + 1.2

1.54

300

1.46 - .28

1.18

300

Ms. Molloy was paying for her groceries. She gave the cashier $13.49, and her groceries only cost $1.24. How much money should she have left?

$12.25

400

The last step to solving decimals is

Add or Subtract!

400

.3 + 1.45

1.75

400

.41 - .29

.12

400

Ms. Marciante was trying to figure out how much money she has left for paint supplies. She started with $4.18. She spent $1.37. How much does she have left?

$2.81

500

What do I need to do if the digit on the bottom is greater than the digit on the top?

Regroup! (Borrow)

500

12.3 + .37

12.67

500

1.3 - .68

.62

500

Ms. Williams went to get a smoothie. It cost her $5.49. She gave the cashier $10.00. How much should she get back?

$4.51

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