Usually contain only one operation i'm dumb (i can't see algebra as a category )

I would say Arithmetic.

Step-by-step explanation:

Arithmetic problems you normally do in your head. An example would be 5x5.

Arithmetic problems don't tend to have more then one operation because it's head math, lol

10.416 meters per second

step-by-step explanation:

distance=1 00 meters

time= 9.6 seconds in decimal form or 9 3/5 as a mixed number

average speed= 100/9.6

=10.416 meters per second or 10 52/125 as a mixed number.

its 60

4 x 12 = 48

3 x 4 = 12

48 + 12 = 60

yeeeet