Question

1. $\frac{1}{5}-\frac{1}{10}$
2. circle three consecutive decimals in the grid that have a sum of 0.8.

(hint: no diagonals)

Explanation:

Step1: Find common denominator

The common denominator of \(5\) and \(10\) is \(10\). So \(\frac{1}{5}=\frac{1\times2}{5\times2}=\frac{2}{10}\).

Step2: Subtract fractions

\(\frac{2}{10}-\frac{1}{10}=\frac{2 - 1}{10}=\frac{1}{10}\)

For the second part:

Step1: Check row - wise sums

First row: \(0.3+0.4 + 0.9=1.6\)
Second row: \(0.2+0.2+0.2 = 0.6\)
Third row: \(0.6+0.2+0.5=1.3\)

Step2: Check column - wise sums

First column: \(0.3+0.2+0.6 = 1.1\)
Second column: \(0.4+0.2+0.2=0.8\)
Third column: \(0.9+0.2+0.5 = 1.6\)

Answer:

1. \(\frac{1}{10}\)
2. The three consecutive decimals (column - wise) are \(0.4\), \(0.2\), \(0.2\)