Knowing our Numbers — Maths STD 6 — Question

Estimate the following by rounding off number to its greatest place:
108734 - 47599

Evaluate:
(-30) - 15

Find the sum of:
-36 and 1027

Write 'T' for true and 'F' for false statement.The sum of two even numbers is always even.

Identify the monomials, binomials and trinomials in the following:
xy + yz - zx

As seen above, ∆ABC has three sides. Line segment AB is one side. Write the names of the other two sides. ∆ABC has three angles. ∠ABC is one among them. Write the names of the other angles.

Which of the following numbers are even and which are the odd?
253

Evaluate:
(-36) ÷ 6

ln the following, state if the statement is true (T) or false (F):
A radius is a chord of the circle.

Which of the following statement are true and false?
Each diameter of a circle is also a chord of the circle.