1. which conversion requires division?
a. millimeter > > centimeter
b. kilometer > > meter
c. centimeter > > millimeter
d. meter > > millimeter

2. which conversion requires division?
a. milligram > > centigram
b. kilogram > > gram
c. centigram > > milligram
d. gram > > milligram

Correct option is

Part 1: millimeter --->> centimeter

Part 2: milligram --->> centigram            

Step-by-step explanation:

Part 1: Given the conversion i.e  

A. millimeter --->> centimeter  

B. kilometer --->> meter  

C. centimeter --->> millimeter  

D. meter --->> millimeter

we have to find that convert which requires division.

As from the above conversions only in the first option the unit in LHS is smaller than RHS i.e unit millimeter is smaller than centimeter i.e

A.

B.  

C.  

D.

Option A is correct i.e Option A requires division

Part 2: Given the conversion i.e  

A. milligram --->> centigram  

B. kilogram --->> gram  

C. centigram --->> milligram  

D. gram --->> milligram

we have to find that convert which requires division.

As from the above conversions only in the first option the unit in LHS is smaller than RHS i.e unit milligram is smaller than centimeter i.e

A.

B.  

C.  

D.

Option A is correct i.e Option A requires division

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step-by-step explanation: