03:05 duration 3 minutes 5 seconds
Prealgebra 5.3.1
2.3 * 4.12
02:49 duration 2 minutes 49 seconds
Prealgebra 4.8.4
1 - 2/3 * (1/3 - 1/2)
02:04 duration 2 minutes 4 seconds
Prealgebra 4.7.6
2 1/3 ÷ 1 3/4
02:29 duration 2 minutes 29 seconds
Prealgebra 4.7.1
6 * 2 1/2
01:33 duration 1 minute 33 seconds
Prealgebra 4.6.5
9 4/5 - 3 1/2
00:51 duration 51 seconds
Prealgebra 4.6.4
7 3/4 - 2 1/14
01:36 duration 1 minute 36 seconds
Prealgebra 4.5.6
6 2/3
02:03 duration 2 minutes 3 seconds
Prealgebra 4.4.4
20 = 6 - 2x/3
02:12 duration 2 minutes 12 seconds
Prealgebra 4.4.3
5 + 9t/2 = -7/2
05:47 duration 5 minutes 47 seconds
Prealgebra 4.4.2
3x/4 - 1/8 = 1/2
00:57 duration 57 seconds
Prealgebra 4.3.8
7x/8 - 3x/4
02:23 duration 2 minutes 23 seconds
Prealgebra 4.3.7
7/24 - 4/15
01:54 duration 1 minute 54 seconds
Prealgebra 4.3.5
2/5 - 3/8
03:30 duration 3 minutes 30 seconds
Prealgebra 4.2.7
1/8 + 3/4
Prealgebra 4.2.5
1/2 + 1/3
04:44 duration 4 minutes 44 seconds
Prealgebra 4.2.10
9/70 + 11/21 + -6 / 15