07 Math Quiz 1A Review: Adding and Subtracting /Whole Numbers and Decimals

True/False

100

When adding and subtracting decimals, you always include the decimals.

True

200

When adding and subtracting decimals, you always put the longer number on top.

False

300

When adding and subtracting decimals, you ignore the decimal points.

False

400

When adding and subtracting decimals you put the bigger number on top.

False. 

Adding decimals it does not matter which number is on top.

Subtracting decimals, you want to put the left number on top. 

500

When adding and subtracting decimals, you count how many numbers are behind the decimals in the problem and put that in your answer.

False! That's for multiplying!

Adding Decimals

100

3.14 + 5.12 = 

What is 8.26?

200

14.73+15.1=

What is 29.83?

300

0.53+64.095

What is 64.625?

400

17.82 + 3.66=

What is 21.48?

500

1.358+250.2

What is 251.558?

Subtracting Decimals

100

20.8 - 7.34=

What is 13.46?

200

34.63 - 27.9=

What is 6.73?

300

4.351-3.811

0.540

400

78.2-13.069

What is 65.131?

500

32 - .058 = 

31.942

Adding and Subtracting Decimals

100

12.46 + 3.8=

16.26

200

4.5 - 3.79=

What is 0.71?

300

9.38 - 0.19=

What is 9.19?

400

What are the steps for adding decimals?

• Align the Decimals
• Add Column by Column
• Carry Over if Necessary
• Place the Decimal Point 
• Review the Answer

500

what are the steps of subtracting decimals?

• Align the Decimals.
• Subtract Column by Column
• Borrow if Necessary
• Place the Decimal Point
• Review the Answer

Place Value

100

What number is in the hundredths place

45.67

What is 7?

200

What number is in the ones place value?

23.09

What is 3?

300

What number is in the tenths place.

9.12

What is 1?

400

What number is in the tens place.

76.9

What is 7?

500

When you read a number with a decimal, what do you say when you see the decimal?

AND