Addition
0.95 + 5.09 =
6.04
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 0.18 =
0.756
33.6 / 0.05 =
672
For which operations (addition, subtraction, multiplication, division) do you need to count the number of digits after the decimal points?
Multiplication
9.6 + 0.18 =
9.78
43.03 - 6.91 =
36.12
3.07 x 0.8 =
2.456
17156 / 5 =
3431.2
For the last month, Oliver consistently practiced his instrument every Monday, Wednesday, and Saturday. If he practiced on each day for 0.5 hour, how many hours did he practice for the last 3 weeks?
4.5 hours
Monday, Wednesday, & Saturday
(0.5 x 3 = 1.5 hours for 1 week)
3 weeks x 1.5 hours each week = 4.5 hours
1.23 + 899
900.23
12 - 4.61 =
7.39
0.0009 x 0.007
0.0000063
1.22 / 6.1
0.2
With a verified top speed of 304 miles per hour, the Chiron Super Sport 300+ is currently the fastest production car ever built. How many miles would this car travel on the autobahn in Germany going at this speed for 15 minutes (0.25 hour)?
76 miles
8.3459 + 2.45
10.7959
62 - 8.658
53.342
0.283 x 6.7
1.8961
50751 / 15
3383.4
Mrs. Cooper has 15.5 yards of fleece fabric. She wants to make tied fleece blankets which take 1.25 yards of material for each blanket. How many blankets can she make from this fabric?
12 blankets
15.5 divided by 1.25 = 12.4, so she can make 12 blankets.