STAAR Blitz Day 7

Multiple Choice

What is the sum of 2.6 + 3.6?

• 6.2

• 9.4

• 1.3

• 1.23

STAAR Blitz Day 7-Adding and Subtracting Decimals

The decimal point separates the whole number part from the fractional part.

Multiple Choice

What digit is in the tenth place? 134.8

• 1

• 3

• 4

• 8

Multiple Choice

Which number below represents eight thousandths?

• 8

• 8,000

• 0.008

Vocabulary

• Sum- the answer to an addition equation

• Difference- the answer to a subtraction equation

Some text here about the topic of discussion

LINE UP YOUR PLACE VALUES!!!!!!!!!!!!!!!!!!!!!!

• You can use the decimal to keep your place values in line!

• You will NOT always have both a tenths and hundredths place.

• Turn your paper sideways to track the place values.

Multiple Choice

Let's give this a try!

342.7 + 23.49

• 366.19

• 365.56

• 57.76

• 366.29

When you're adding decimals:

• Be sure to line up the decimals

• Be sure to add the tenths to the tenths, and the hundredths to the hundredths

• Remember that ten tenths is one one

Multiple Choice

Let's try another one!

194.5 + 18.76

• 382.1

• 213.26

• 212.81

• 38.21

1. Line up decimals vertically

2. Add zeros as a place holder

3. Add as you would add whole numbers

​Some text here about the topic of discussion.

​Rules of adding decimals

​If a number does not have a decimal point, add a decimal point to the end of the number.

Numbers without decimals

Multiple Choice

Solve the following addition problem. 5.5+4.3=

• 98

• 54.53

• 9.8

• 9.08

Multiple Choice

0.65+0.35=

• 0.1

• 1

• 100

• .90

Multiple Choice

OK... Let's subtract!

756.9 - 62.14 = ?

• 714.5

• 694.84

• 714.84

• 694.76

When you're subtracting decimals:

• Line up your place values!

• Regroup place values if needed!

• Don't forget to check your work!

1. Line up your decimals

2. Add 0's after the decimal point

3. Subtract as you would with whole numbers

4. Just move the decimal point down into your answer

Rules of subtracting decimals

Multiple Choice

133.82-8.6=

• 125.76

• 125.22

• 44.82

• 13,296

Multiple Choice

18.2-11.4=

• 6.8

• 7.2

• 68

• 6.7

Multiple Choice

Ronald paid $3.00 for a sandwich. She paid $0.85 for an apple. What is the total amount Ronald paid for lunch?

• $2.15

• $3.85

• $4.00

Multiple Choice

Patricia had $5.00. She spent $3.65 on a new toy. How much money does she have left?

• $1.35

• $8.65

• $35.65

Remember- Subtracting requires:

• Regrouping place values when necessary

• Checking your answer with addition

• Lining up your place values

REMEMBER!!

ALWAYS line up your decimal points!

Multiple Choice

Which is the correct order from least to greatest?

4.982, 0.999, 18.2, 119.987

• 4.982, 0.999, 18.2, 119.987

• 0.99, 4.982, 18.2, 119.987

• 119.987, 18.2, 4.982, 0.999

Multiple Choice

Ronald paid $3.00 for a sandwich. She paid $0.85 for an apple. What is the total amount Ronald paid for lunch?

• $2.15

• $3.85

• $4.00

Multiple Choice

2.963 + 5.4

• 8.463

• 7.363

• 8.363

Multiple Choice

561 - 12.34

• 548.34

• 548.66

• 551.34

Multiple Choice

21 + 4.09 =

• 4.30

• 6.19

• 25.09

• 16.91

Multiple Choice

Patricia had $5.00. She spent $3.65 on a new toy. How much money does she have left?

• $1.35

• $8.65

• $35.65

Multiple Choice

Which addition equation has the total of 7.29?

• 7.00+7.29

• 4.00+0.29

• 4.62+9.00

• 4.18+3.11