02:13 duration 2 minutes 13 seconds
1314 4.1.1
Inverse Operations
02:33 duration 2 minutes 33 seconds
1314 5.7.3
Subtracting Matrices
03:09 duration 3 minutes 9 seconds
Prealgebra 2.3.1
a - b = a + (-b)
01:35 duration 1 minute 35 seconds
Prealgebra 2.3.10
Denver's Coldest Day
05:10 duration 5 minutes 10 seconds
Prealgebra 2.3.9
5 - 5
02:01 duration 2 minutes 1 second
Prealgebra 2.5.3
PEMDAS
01:49 duration 1 minute 49 seconds
Prealgebra 2.5.4
2 ^ 4 + 51 * 4 - (37 + 23 * 2)
02:08 duration 2 minutes 8 seconds
Prealgebra 2.5.5
|(-2)^3 / 4|- 5 (-2)
02:09 duration 2 minutes 9 seconds
Prealgebra 2.5.6
5 - (-3) ^ 2 / -2
04:05 duration 4 minutes 5 seconds
Prealgebra 2.8.1
Introduction to Solving Equations
02:25 duration 2 minutes 25 seconds
Prealgebra 2.8.2
23 = t + 7
01:51 duration 1 minute 51 seconds
Prealgebra 2.8.4
48 = -8n
01:07 duration 1 minute 7 seconds
Prealgebra 2.8.7
36 = -3t
02:46 duration 2 minutes 46 seconds
Prealgebra 3.6.2
1/3 * 5/4
00:24 duration 24 seconds
Prealgebra 4.3.1
8/13 - 3/13
01:47 duration 1 minute 47 seconds
Prealgebra 4.6.1
1 5/8 + 3 1/8