The same reason that people of other countries use maths.
I use maths in the kitchen to calculate cooking times and the weights and measures of ingredients.
Through sundials,water devices etc
For the same reasons that we need to use maths today.
People use powers in math because it is easier to write 2 to the power of 10 than writing 2x2x2x2x2x2x2x2x2x2.
bullock carts, boats, bicycles, horse carriages, sledges, horses, camels,
The same reason that people of other countries use maths.
Stone, Mud, bricks, straw, wood, various Textiles, leather, dirt.
A boat, in the olden times
By writing letters
I use maths in the kitchen to calculate cooking times and the weights and measures of ingredients.
If you don't know what the answer is to a hard maths question people use calculators. Like 644 times 1076? Who would know that!?
Braille came into use by the blind people of the olden days.
there was barter system
well some people use coculateors or other use there fingers.
they use to cross the river in cannoe or in ferry
To make sure that everything adds up.