Adding Decimals
10.01 + 11. 34 =
1.34 - 0.62 =
0.72
What is the value of the italicized digit? (7)
6.78
7 tenths, 7/10
5+4=
9
What is the name of the "dot" in a math number?
Decimal point
1.3 + 1.45 =
2.75
9.45 - 3. 13 =
6.32
What is the value of the italicized digit? (6)
45.786
6 thousandths, 6/1000
12 + 12 =
24
What is the first step to adding/subtracting decimals?
Line up the decimal points
$4.50 + $7. 89 =
$12.39
$10.21
What is the value of the italicized digit? (5)
34.658
5 hundredths, 5/100
14-8 =
6
What is one trick you can use when adding/subtracting decimals?
Turn your notebook sideways! Use the lines for place value.
1.34 + 5 + 13.4 =
19.74
23.3 - 14.2 =
9.1
What is the value of the italicized digit? (4)
458.32
400
14 - 4 + 5 =
15
What is the third step to subtracting decimals?
Remember to bring down the decimal point.
8 + 4.3 + 7.89 =
20.19
45.25 - 3.47 =
41.78
What is the value of the italicized digits? (7, 7, 7)
678.757
70, 7/10, 7/1000
23 - 4 + 8 =
27
When subtracting decimals, which number has to be greater in order for you to subtract?
The top number