II maths puzzle II #shorts

Consider the 3 -puzzle problem shown in figure.

Determine the missing value in the puzzle below :

Find the sum by short method: (i) 6784+9999 (ii) 10578 +99999

Math column I with Column II and select the correct options from the choices given below the columns.

Math column I with column II and select the correct option from the codes given below {:("Column I","Column II"),(A."Food",(i)."Brown algae"),(B."Agar",(ii)."Porphyra, Laminaria"),(C."Algin",(iii)."Gelidium, Gracilaria"),(D."Carrageenin",(iv)."Red algae"):}