8th Mathematics Monthly Test - 2 ( Numbers )

St. Britto Hr. Sec. School - Madurai

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

Time : 1.30 Hours

Part - A

Generic 2 - Answer All Question

Find the standard form of \(\frac{36}{-96}\)

\(\frac { -22 }{ 27 } \div \frac { -110 }{ 18 } =?\)

Draw the number line and represent the following rational numbers on it.
\(\frac { 15 }{ -4 } \)

Is subtraction is commutative for rational numbers. Give an example,

Is the number \(\frac{7}{-5}\) a fraction or a rational number? why?

Find the standard form of \(\frac{27}{18}\)

Subtract \(\frac { -8 }{ 44 } \) from \(\frac { -17 }{ 11 } \)

The simplest form of \(\frac{125}{200}\) is__________.

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

\(\frac{-8}{11}+\frac{-4}{11}\) Simplify

Mark the rational numbers on a number line.
\(\frac{-2}{3}\)

Multiply \(\frac{9}{-7}\)by \(\frac{36}{-11}\)

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

Divide: -2 by \(\frac { -6 }{ 15 } \)

Write four rational numbers equivalent to
\(\frac { 8 }{ 9 } \)

Draw the number line and represent the following rational numbers on it.
\(\frac { 9 }{ 4 } \)

Mark the rational numbers on a number line.
\(\frac{5}{-4}\)

Observe that, \(\frac { 1 }{ 1.2 } +\frac { 1 }{ 2.3 } =\frac { 2 }{ 3 } ;\frac { 1 }{ 1.2 } +\frac { 1 }{ 2.3 } +\frac { 1 }{ 3.4 } =\frac { 3 }{ 4 } ;\frac { 1 }{ 1.2 } +\frac { 1 }{ 2.3 } +\frac { 1 }{ 2.3 } +\frac { 1 }{ 3.4 } +\frac { 1 }{ 4.5 } =\frac { 4 }{ 5}\)Use your reasoning skills, to find the sum of the first 7 numbers in the pattern given above.

Arrange the following rational numbers in ascending and descending order
\(\frac { -5 }{ 12 } ,\frac { -11 }{ 8 } ,\frac { -15 }{ 24 } ,\frac { -7 }{ -9 } ,\frac { 12 }{ 36 } \)

Which of the following properties hold for subtraction of rational numbers? Why?
closure

Using average, write 3 rational numbers between \(\frac { 14 }{ 5 } \) and \(\frac { 16 }{ 3 } \)

List five rational numbers between
0.25 and 0.35

Find(x+y)+(x-y) if x =\(\frac{1}{4};y=\frac{3}{2}\)

Divide \(\frac{7}{36}\) by \(\frac{35}{81}\)

Compare the following pairs of rational numbers.
\(\frac { 3 }{ -4 } ,\frac { -1 }{ 2 } \)

Explain why the statements are true?
1.4>\(\frac{1}{4}\)

Write five rational numbers which are less than –2.

The closure property on integers holds for subtraction and not for division. What about rational numbers? Verify.

Ravi multiplied \(\frac { 25 }{ 8 } \) and \(\frac { 16 }{ 15 } \) to obtain \(\frac { 400 }{ 120 } \) He says that the simplest form of this product is \(\frac { 10 }{ 3 } \) and Chandru says the answer in the simplest form is \( 3\frac { 1 }{ 3 } \) Who is correct? (or) Are they both correct? Explain.

Write four rational numbers equivalent to
\(\frac { -7 }{ 6 } \)

Add \(\frac{7}{9}\) and \(\frac{-12}{9}\)

Subtract \(\frac{3}{4}\) and \(\frac{7}{4}\)

\(\frac { 5 }{ 9 } +\frac { -11 }{ 6 } \).

The pairs are equivalent rational numbers?
\(\frac { -6 }{ 4 } ,\frac { 33 }{ -22 } \)

Subbu spends \(\frac { 1 }{ 3 } \) of his monthly earnings on rent, \(\frac { 2 }{ 5 } \) on food and \(\frac { 1 }{ 10 } \) on monthly usuals. What fractional part of his earnings is left with him for other expenses?

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8th Mathematics Monthly Test - 2 ( Numbers )

St. Britto Hr. Sec. School - Madurai

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

Part - A

Generic 2 - Answer All Question

Find the standard form of \(\frac{36}{-96}\)

\(\frac { -22 }{ 27 } \div \frac { -110 }{ 18 } =?\)

Draw the number line and represent the following rational numbers on it. \(\frac { 15 }{ -4 } \)

Is subtraction is commutative for rational numbers. Give an example,

Is the number \(\frac{7}{-5}\) a fraction or a rational number? why?

Find the standard form of \(\frac{27}{18}\)

Subtract \(\frac { -8 }{ 44 } \) from \(\frac { -17 }{ 11 } \)

The simplest form of \(\frac{125}{200}\) is__________.

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

\(\frac{-8}{11}+\frac{-4}{11}\) Simplify

Mark the rational numbers on a number line. \(\frac{-2}{3}\)

Multiply \(\frac{9}{-7}\)by \(\frac{36}{-11}\)

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

Divide: -2 by \(\frac { -6 }{ 15 } \)

Write four rational numbers equivalent to \(\frac { 8 }{ 9 } \)

Draw the number line and represent the following rational numbers on it. \(\frac { 9 }{ 4 } \)

Mark the rational numbers on a number line. \(\frac{5}{-4}\)

Arrange the following rational numbers in ascending and descending order \(\frac { -5 }{ 12 } ,\frac { -11 }{ 8 } ,\frac { -15 }{ 24 } ,\frac { -7 }{ -9 } ,\frac { 12 }{ 36 } \)

Which of the following properties hold for subtraction of rational numbers? Why? closure

Using average, write 3 rational numbers between \(\frac { 14 }{ 5 } \) and \(\frac { 16 }{ 3 } \)

List five rational numbers between 0.25 and 0.35

Find(x+y)+(x-y) if x =\(\frac{1}{4};y=\frac{3}{2}\)

Divide \(\frac{7}{36}\) by \(\frac{35}{81}\)

Compare the following pairs of rational numbers. \(\frac { 3 }{ -4 } ,\frac { -1 }{ 2 } \)

Explain why the statements are true? 1.4>\(\frac{1}{4}\)

Write five rational numbers which are less than –2.

The closure property on integers holds for subtraction and not for division. What about rational numbers? Verify.

Write four rational numbers equivalent to \(\frac { -7 }{ 6 } \)

Add \(\frac{7}{9}\) and \(\frac{-12}{9}\)

Subtract \(\frac{3}{4}\) and \(\frac{7}{4}\)

\(\frac { 5 }{ 9 } +\frac { -11 }{ 6 } \).

The pairs are equivalent rational numbers? \(\frac { -6 }{ 4 } ,\frac { 33 }{ -22 } \)

Subbu spends \(\frac { 1 }{ 3 } \) of his monthly earnings on rent, \(\frac { 2 }{ 5 } \) on food and \(\frac { 1 }{ 10 } \) on monthly usuals. What fractional part of his earnings is left with him for other expenses?

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Draw the number line and represent the following rational numbers on it.
\(\frac { 15 }{ -4 } \)

Mark the rational numbers on a number line.
\(\frac{-2}{3}\)

Write four rational numbers equivalent to
\(\frac { 8 }{ 9 } \)

Draw the number line and represent the following rational numbers on it.
\(\frac { 9 }{ 4 } \)

Mark the rational numbers on a number line.
\(\frac{5}{-4}\)

Arrange the following rational numbers in ascending and descending order
\(\frac { -5 }{ 12 } ,\frac { -11 }{ 8 } ,\frac { -15 }{ 24 } ,\frac { -7 }{ -9 } ,\frac { 12 }{ 36 } \)

Which of the following properties hold for subtraction of rational numbers? Why?
closure

List five rational numbers between
0.25 and 0.35

Compare the following pairs of rational numbers.
\(\frac { 3 }{ -4 } ,\frac { -1 }{ 2 } \)

Explain why the statements are true?
1.4>\(\frac{1}{4}\)

Write four rational numbers equivalent to
\(\frac { -7 }{ 6 } \)

The pairs are equivalent rational numbers?
\(\frac { -6 }{ 4 } ,\frac { 33 }{ -22 } \)