What are some examples of norms from daily life?

How do you write 0.00000345 s in scientific notation? Describe the difference in the ability levels of the students in the class? What is 100.3 M into km? Solutions for 4x squared plus 4x plus 1 equals 0? What does it mean when a 4 year old child writes letters backwards? What is 25 percent of 1650? How to restore your figure without consequences for the body at home? What are the notes in A flat minor scale? Are there such a thing as a half coin penny in American money? What fraction is equivalent to 0.137795276? When you calculate a mean the sign of the quotient always depends on the sign of the dividend why? How do you get menstrual date? Where is W H O head office? What we will call 100000000000? Is one fourth equivalent to two eighth? How much is one tenth of fifty? A rectangle plot of ground measuring 12 meters by 20 meters is surrounded by a sidewalk of a uniform width and the area of the sidewalk is 68 square meters find the width of the walk? What does 0.6 million look like? What is the least significant digit of 9200? Which day was fourth April 1994?