Addition
11.95 + 5.09 =
17.04
5.68 - 4.23 =
1.45
8 x 6.5 =
52
13.8 / 3 =
4.6
For which 2 operations (addition, subtraction, multiplication, division) do you need to line up the decimal points?
Addition and Subtraction
11.27 + 9.4 =
20.67
67.75 - 8.1 =
59.65
4.2 x 1.8 =
7.56
33.6 / .5 =
67.2
For which operations (addition, subtraction, multiplication, division) do you need to count the number of digits after the decimal points?
Multiplication
9.6 + 0.32 =
9.92
43.03 - 6.91 =
36.12
3.7 x 0.8 =
2.96
15.6 / 5 =
3.12
What digit do you need to add to the dividend (after the decimal point) when there are no more numbers to bring down?
0
21.23 + 8
29.23
12 - 4.61 =
7.39
0.07 x 0.5
0.035
122 / 6.1
20
When multiplying by a decimal, which way do you move the decimal point when placing it in your answer?
To the left
8.63 + 2.45
11.08
78 - 48.6
29.4
.23 x 6.7
1.541
118 / 5.9
20
What's the rule when you have a decimal in a divisor?
Make the divisor a whole number.