The concepts of more, less and same are basic relationships that contribute to children's understanding of number. Identify the one relationship that if a child is unable to use they may be at educational risk.

Equality Sign

Step-by-step explanation:

A child may be at educational risk if he is unable to use the equality sign as it is the basis for comparison of numbers.

Once a child can determine if two numbers are the same, we can then proceed to introduce comparisons of numbers. That is, either it is more than a stated number or less.

For example,

If number of apples=6, a child who understands this will know if 5 apples are less or more as appropriate.

3=log(n)=2

answer a: product property

< coa = 150 ( given)

as ba and bc are tangents

so oc and oa is perpendicular to cb and ab respectively because in circle normal passes through centre

so in quadrilateral oabc

< coa + < oab + < ocb + < abc = 360

150 +90+90 + < abc = 360

330 + < abc = 360

< abc = 360 -330 = 30

so < abc = 30

⭐dhruv⭐