Number System — Maths STD 6 — Question

Mark the following integers on a number line:
-5

Test the divisibility of the following numbers by 4:
9801523

Fill in the blanks to make the following a true statement:1946 + ___________ = 984 + 1946

Write the following using number, literals and sings of basic operations. State what each letter represents:
The perimeter of a rectangle is two times the sum of its length and breadth.

Write the corresponding numeral for the following:
2 × 10000000 + 5 × 100000 + 7 × 1000 + 9 × 100 + 5 × 1

Find the ratio of the first quantity to the second.
99 kg, 44000 grams

Write the following numbers in the Indian system of numeration:
Six million five hundred forty three thousand two hundred ten.

Estimate the following by rounding off number to its greatest place:
87 × 317

What fraction of an hour is 24 minutes?

Add:
3x, 7x