8th Mathematics Weekly Test- 2 (Numbers)

St. Britto Hr. Sec. School - Madurai

8th Mathematics Weekly Test- 2 (Numbers)-Aug 2020

Time : 1.00 Hours

Part - A

Generic 2 - Answer All Question

Compare the following pairs of rational numbers.
\(\frac { 2 }{ 3 } ,\frac { 4 }{ 5 } \)

Explain why the statements are true?
0.74<\(\frac{3}{4}\)

In a city, \(\frac{7}{20}\) of the population is women and \(\frac{1}{4}\) is children. Find the fraction of the population of men.

Multiply \(\frac{3}{4}\) by \(\frac{5}{17}\)

Evaluate \(\frac { -6 }{ 13 } -\frac { -7 }{ 13 } \)

Is \(\frac { 3 }{ 5 } \div \frac { 7 }{ 8 } =\frac { 7 }{ 8 } \div \frac { 3 }{ 5 } \)? So, what do you conclude?

Find the standard form of \(\frac{-56}{-72}\)

What should be added to \(\frac { -8 }{ 9 } \) to get \(\frac { 2 }{ 5 } \)?

Part - B

Generic 3 - Answer All Question

A student instead of multiplying a number by \(\frac { 8 }{ 9 } ,\) divided it by \(\frac { 8 }{ 9 } \) by mistake. If the difference between the answers got by him is 34, find the number.

Subtract \(\frac { 9 }{ 17 } \) from \(\frac { -12 }{ 17 } \)

Find the rational numbers that should be added and subtracted that will make the sum \(3\frac { 1 }{ 2 } +1\frac { 3 }{ 4 } +2\frac { 3 }{ 8 } \) to the nearest whole number.

Simplify \(\left( \frac { 13 }{ 7 } \times \frac { 11 }{ 26 } \right) -\left( \frac { -4 }{ 3 } \times \frac { 5 }{ 6 } \right) \)

Evaluate: \(\left( \frac { 4 }{ 3 } -\left( \frac { -3 }{ 2 } \right) \right) +\left( \frac { -5 }{ 3 } \div \frac { 30 }{ 12 } \right) +\left( \frac { -12 }{ 9 } \times \frac { -27 }{ 16 } \right) \)

What number should be subtracted from \(\frac{7}{3}\) to get \(\frac{5}{4}?\)

The product of two rational numbers is \(\frac{-28}{81}\). If one of the number is \(\frac{14}{27}\). find the other number.

Verify associative property for addition \(x=\frac { -7 }{ 11 } ,y=\frac { 2 }{ 11 } ,z=\frac { 3 }{ 11 } \)

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8th Mathematics Weekly Test- 2 (Numbers)

St. Britto Hr. Sec. School - Madurai

8th Mathematics Weekly Test- 2 (Numbers)-Aug 2020

Part - A

Generic 2 - Answer All Question

Compare the following pairs of rational numbers. \(\frac { 2 }{ 3 } ,\frac { 4 }{ 5 } \)

Explain why the statements are true? 0.74<\(\frac{3}{4}\)

In a city, \(\frac{7}{20}\) of the population is women and \(\frac{1}{4}\) is children. Find the fraction of the population of men.

Multiply \(\frac{3}{4}\) by \(\frac{5}{17}\)

Evaluate \(\frac { -6 }{ 13 } -\frac { -7 }{ 13 } \)

Is \(\frac { 3 }{ 5 } \div \frac { 7 }{ 8 } =\frac { 7 }{ 8 } \div \frac { 3 }{ 5 } \)? So, what do you conclude?

Find the standard form of \(\frac{-56}{-72}\)

What should be added to \(\frac { -8 }{ 9 } \) to get \(\frac { 2 }{ 5 } \)?

Part - B

Generic 3 - Answer All Question

A student instead of multiplying a number by \(\frac { 8 }{ 9 } ,\) divided it by \(\frac { 8 }{ 9 } \) by mistake. If the difference between the answers got by him is 34, find the number.

Subtract \(\frac { 9 }{ 17 } \) from \(\frac { -12 }{ 17 } \)

Find the rational numbers that should be added and subtracted that will make the sum \(3\frac { 1 }{ 2 } +1\frac { 3 }{ 4 } +2\frac { 3 }{ 8 } \) to the nearest whole number.

Simplify \(\left( \frac { 13 }{ 7 } \times \frac { 11 }{ 26 } \right) -\left( \frac { -4 }{ 3 } \times \frac { 5 }{ 6 } \right) \)

Evaluate: \(\left( \frac { 4 }{ 3 } -\left( \frac { -3 }{ 2 } \right) \right) +\left( \frac { -5 }{ 3 } \div \frac { 30 }{ 12 } \right) +\left( \frac { -12 }{ 9 } \times \frac { -27 }{ 16 } \right) \)

What number should be subtracted from \(\frac{7}{3}\) to get \(\frac{5}{4}?\)

The product of two rational numbers is \(\frac{-28}{81}\). If one of the number is \(\frac{14}{27}\). find the other number.

Verify associative property for addition \(x=\frac { -7 }{ 11 } ,y=\frac { 2 }{ 11 } ,z=\frac { 3 }{ 11 } \)

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Compare the following pairs of rational numbers.
\(\frac { 2 }{ 3 } ,\frac { 4 }{ 5 } \)

Explain why the statements are true?
0.74<\(\frac{3}{4}\)