Q.1: Additive inverse of 9 is ______.
Q.1: ___________ is the additive identity for whole numbers.
Q.1: A simple closed curve made up of only line segments is called ____________.
( Chapters included : Integers, Fractions & Decimals, Data Handling, Simple Equations )
Q.1: Check which of the following are solutions of the equation 7x – y = 15: