(5 to the 6th ) – (5 to the 5th ) over 4 =? MANY will get WRONG! (No Calculator)
19:30
x + y = 8, x – y = –2 which is correct: a) (0,-12), b) (1,8), c) (3,5), d) (4,4), e) (8,-5)
22:28
3^m – 2^m = 65 MOST won’t FIGURE OUT how to solve!
21:32
10 divided by 10 to the negative 3=? many are going to get this WRONG!
18:13
Simplify the Cube Root Radical Expression. MOST will NOT Get RIGHT!
3:57
How to Calculate faster than a Calculator? | Mental Maths | (Part -1, 47 × 25 in a second)| #howto
22:04
.6 divided by 3 times (1/2) squared =? A BASIC Math problem MANY will get WRONG!
20:03
3 to (x/2) = 12, many don’t know where to start
13:33