Decimals — Maths STD 7 — Question

The weights of new born babies (in kg) in a hospital on a particular day are as follows:
2.3, 2.2, 2.1, 2.7, 2.6, 3.0, 2.5, 2.9, 2.8, 3.1, 2.5, 2.8, 2.7, 2.9, 2.4
Rearrange the weights in descending order.

Factorise the following expressions and write them in the product form : 24a²b²

The final marks in mathematics of 30 students are as follows:
53, 61, 48, 60, 78, 68, 55, 100, 67, 90
75, 88, 77, 37, 84, 58, 60, 48, 62, 56
44, 58, 52, 64, 98, 59, 70, 39, 50, 60
What is the lowest score?

Fill in the blanks:
(_____) ÷ 25 = 0

How many pairs of adjacent angles are formed when two lines intersect in a point?

What will be the sign of the product if we multiply together:
199 negative integers and 10 positive integer?

Express the following decimals as percents:
0.24

Find the product:
3.4 × 17

Divide:
235.41 by 1000