03:05 duration 3 minutes 5 seconds
Prealgebra 5.3.1
2.3 * 4.12
02:50 duration 2 minutes 50 seconds
Prealgebra 4.7.4
1 1/2 ÷ 1/6
02:44 duration 2 minutes 44 seconds
Prealgebra 4.6.15
-6 4/5 - 5 2/9
05:47 duration 5 minutes 47 seconds
Prealgebra 4.4.2
3x/4 - 1/8 = 1/2
03:22 duration 3 minutes 22 seconds
Prealgebra 4.4.1
5x - 2 = 43
03:21 duration 3 minutes 21 seconds
Prealgebra 2.8.8
5x - 8 = 27
01:51 duration 1 minute 51 seconds
Prealgebra 2.8.4
48 = -8n
03:35 duration 3 minutes 35 seconds
Prealgebra 2.8.3
9x = 63
04:05 duration 4 minutes 5 seconds
Prealgebra 2.8.1
Introduction to Solving Equations
03:01 duration 3 minutes 1 second
Prealgebra 2.4.2
(-3) * (-5) = 15
01:45 duration 1 minute 45 seconds
Prealgebra 2.2.9
12 + (-2) + 14 + (-5)+ (-12)
01:16 duration 1 minute 16 seconds
Prealgebra 2.2.8
-8 + 8
01:43 duration 1 minute 43 seconds
Prealgebra 2.2.7
-12 + (-7)
03:00 duration 3 minutes 0 seconds
Prealgebra 2.1.11
If x is 2 find - (-x)
00:58 duration 58 seconds
Negative Externalities
10:51 duration 10 minutes 51 seconds
Key Signatures -- Sharps
An explanation of sharps key signatures, or key signatures with sharps. A companion to the Flats key signatures video.