How many millimetres are in ten and a half centimetres

105 mm

Step-by-step explanation:

in ten and half centimetres, there are

(10×10+0.5×10)mm

(100+5)mm

105 mm

105 millimeters

Step-by-step explanation:

10 millimeters=1 centimeter

that being said 5 millimeters=0.5 centimeters

if you notice, all you have to do is multiply the value of the centimeters by 10 to get the number of millimeters.

for example, in this problem it wants you to change 10.5 centimeters into millimeters

all you need to do is multiply 10.5 by 10 to get 105 millimeters which is the solution to the problem.

I tried explaining this as best as I could. Hope I wasn't confusing. Have a great day!

answer: -8.2562234e+13