Addition
2.6 + 4.9
7.5
3.8 - 2.5
1.3
27 + 72
99
Are decimals whole numbers?
Decimals are not included in the set of whole numbers.
True or false: adding and subtracting decimals is the same as adding and subtracting whole numbers
True
13.3 + 14.2
27.5
12.3 - 10.2
2.1
301 + 247
548
What is the most important part to adding and subtracting decimal?
The most important thing is to keep your decimal points lined up.
Write in word form: 2.34
Two and thirty-four hundredths
4.32 + 3.26
7.58
5.36 - 4.28
1.08
126- 51
75
What place value is two places after the decimal?
The hundredths.
Write in expanded form: 6.07
6 + .07 or 6 + .0 + .07 or (6 x 1) + (7 x .01)
13.3 + 14.2
49.56
28.39 - 26.28
2.11
6147 + 835
6982
When adding, subtracting, multiplying, or dividing decimals, you have to move the decimal in your answer. True or False
Borrow from the next place value
29.16 + 4.22
33.38
46.27 - 43.28
2.99
9132 -345
8787
How do you line up decimal numbers when adding or subtracting?
Line up the decimal points and then add or subtract.
What is a real life example of using decimals?
Money